St. Clair County, Illinois

Year	Democrat	Republican	Others	Total
2024	63,433	54,021	2,508	119,962
2020	68,325	57,150	3,930	129,405
2016	60,756	53,857	6,823	121,436
2012	67,285	50,125	2,417	119,827
2008	76,160	47,958	1,626	125,744
2004	62,410	50,203	576	113,189

Year

Democrat

Republican

Others

Total

2024

63,433

54,021

2,508

119,962

2020

68,325

57,150

3,930

129,405

2016

60,756

53,857

6,823

121,436

2012

67,285

50,125

2,417

119,827

2008

76,160

47,958

1,626

125,744

2004

62,410

50,203

576

113,189

Measure	St. Clair County	Illinois	United States
Median age	39.9	39.1	39.1
Age 18–24	8.1%	9.1%	9.2%
Age 65 and older	17.4%	16.9%	17.2%

Measure

St. Clair County

Illinois

United States

Median age

39.9

39.1

Age 18–24

8.1%

9.1%

9.2%

Age 65 and older

17.4%

16.9%

17.2%

Measure	St. Clair County	Illinois	United States
Median household income	$73,854	$83,390	$84,427
Poverty rate	13.6%	11.8%	12.5%
Bachelor's degree or higher (25+)	31.8%	37.9%	35.6%

Measure

St. Clair County

Illinois

United States

Median household income

$73,854

$83,390

$84,427

Poverty rate

13.6%

11.8%

12.5%

Bachelor's degree or higher (25+)

31.8%

37.9%

35.6%

Measure	St. Clair County	Illinois	United States
Speaks a non-English language at home	5.0%	24.1%	22.3%
Spanish	2.8%	14.0%	13.6%

Measure

St. Clair County

Illinois

United States

Speaks a non-English language at home

5.0%

24.1%

22.3%

Spanish

2.8%

14.0%

13.6%

Measure	St. Clair County	Illinois	United States
Catholic	13.4%	24.2%	18.6%
Evangelical Protestant	18.5%	11.7%	16.5%
Unclaimed / not counted	53.6%	49.2%	51.5%
Mainline Protestant	5.6%	5.3%	5.2%
Black Protestant	5.4%	3.0%	2.2%

Measure

St. Clair County

Illinois

United States

Catholic

13.4%

24.2%

18.6%

Evangelical Protestant

18.5%

11.7%

16.5%

Unclaimed / not counted

53.6%

49.2%

51.5%

Mainline Protestant

5.6%

5.3%

5.2%

Black Protestant

5.4%

3.0%

2.2%

Precinct data

Results by precinct

385 precincts · 106,415 votes

Election

Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.

St. Clair County precinct-level presidential election results for 2024

Precinct -MASCOUTAH 3MASCOUTAH 3	568	979	59	1,606	35.4%	61.0%	R+25.6
Precinct -CASEYVILLE 02CASEYVILLE 02	821	523	38	1,382	59.4%	37.8%	D+21.6
Precinct -MASCOUTAH 2MASCOUTAH 2	502	771	36	1,309	38.3%	58.9%	R+20.6
Precinct -STOOKEY 01STOOKEY 01	401	860	41	1,302	30.8%	66.1%	R+35.3
Precinct -CASEYVILLE 14CASEYVILLE 14	844	386	43	1,273	66.3%	30.3%	D+36.0
Precinct -CASEYVILLE 06CASEYVILLE 06	566	632	46	1,244	45.5%	50.8%	R+5.3
Precinct -ST CLAIR 23ST CLAIR 23	719	475	38	1,232	58.4%	38.6%	D+19.8
Precinct -LEBANON 1LEBANON 1	558	627	45	1,230	45.4%	51.0%	R+5.6
Precinct -SHILOH VALLEY 5SHILOH VALLEY 5	669	532	29	1,230	54.4%	43.3%	D+11.1
Precinct -MILLSTADT 2MILLSTADT 2	387	807	29	1,223	31.6%	66.0%	R+34.3
Precinct -ST CLAIR 24ST CLAIR 24	838	357	26	1,221	68.6%	29.2%	D+39.4
Precinct -BELLEVILLE 05BELLEVILLE 05	479	667	38	1,184	40.5%	56.3%	R+15.9
Precinct -CASEYVILLE 05CASEYVILLE 05	546	603	29	1,178	46.3%	51.2%	R+4.8
Precinct -ST CLAIR 14ST CLAIR 14	565	511	39	1,115	50.7%	45.8%	D+4.8
Precinct -MARISSA 1MARISSA 1	231	852	25	1,108	20.8%	76.9%	R+56.0
Precinct -PRAIRIE DU LONG 2PRAIRIE DU LONG 2	285	790	28	1,103	25.8%	71.6%	R+45.8
Precinct -SHILOH VALLEY 1SHILOH VALLEY 1	484	569	44	1,097	44.1%	51.9%	R+7.7
Precinct -ST CLAIR 15ST CLAIR 15	539	521	33	1,093	49.3%	47.7%	D+1.6
Precinct -CASEYVILLE 18CASEYVILLE 18	583	459	39	1,081	53.9%	42.5%	D+11.5
Precinct -CASEYVILLE 08CASEYVILLE 08	516	524	34	1,074	48.0%	48.8%	R+0.7
Precinct -ST CLAIR 06ST CLAIR 06	548	440	43	1,031	53.2%	42.7%	D+10.5
Precinct -SMITHTON 1SMITHTON 1	321	668	29	1,018	31.5%	65.6%	R+34.1
Precinct -CASEYVILLE 12CASEYVILLE 12	492	483	40	1,015	48.5%	47.6%	D+0.9
Precinct -FREEBURG 1FREEBURG 1	259	703	41	1,003	25.8%	70.1%	R+44.3
Precinct -MASCOUTAH 4MASCOUTAH 4	416	543	40	999	41.6%	54.4%	R+12.7
Precinct -MILLSTADT 1MILLSTADT 1	291	679	24	994	29.3%	68.3%	R+39.0
Precinct -BELLEVILLE 24BELLEVILLE 24	559	390	41	990	56.5%	39.4%	D+17.1
Precinct -SMITHTON 3SMITHTON 3	250	691	28	969	25.8%	71.3%	R+45.5
Precinct -SUGAR LOAF 1SUGAR LOAF 1	258	684	21	963	26.8%	71.0%	R+44.2
Precinct -SHILOH VALLEY 2SHILOH VALLEY 2	483	445	30	958	50.4%	46.5%	D+4.0
Precinct -FREEBURG 2FREEBURG 2	287	641	24	952	30.1%	67.3%	R+37.2
Precinct -CASEYVILLE 22CASEYVILLE 22	586	328	29	943	62.1%	34.8%	D+27.4
Precinct -ST CLAIR 22ST CLAIR 22	598	322	23	943	63.4%	34.1%	D+29.3
Precinct -BELLEVILLE 20BELLEVILLE 20	593	304	35	932	63.6%	32.6%	D+31.0
Precinct -STOOKEY 05STOOKEY 05	456	453	22	931	49.0%	48.7%	D+0.3
Precinct -MILLSTADT 5MILLSTADT 5	290	606	32	928	31.3%	65.3%	R+34.1
Precinct -FREEBURG 3FREEBURG 3	262	621	33	916	28.6%	67.8%	R+39.2
Precinct -MASCOUTAH 1MASCOUTAH 1	268	615	29	912	29.4%	67.4%	R+38.0
Precinct -STOOKEY 02STOOKEY 02	565	321	19	905	62.4%	35.5%	D+27.0
Precinct -CASEYVILLE 10CASEYVILLE 10	429	423	35	887	48.4%	47.7%	D+0.7
Precinct -ST CLAIR 03ST CLAIR 03	433	420	29	882	49.1%	47.6%	D+1.5
Precinct -SUGAR LOAF 3SUGAR LOAF 3	278	583	21	882	31.5%	66.1%	R+34.6
Precinct -BELLEVILLE 19BELLEVILLE 19	498	342	36	876	56.8%	39.0%	D+17.8
Precinct -BELLEVILLE 11BELLEVILLE 11	547	286	30	863	63.4%	33.1%	D+30.2
Precinct -CASEYVILLE 03CASEYVILLE 03	508	326	25	859	59.1%	38.0%	D+21.2
Precinct -ST CLAIR 01ST CLAIR 01	458	377	24	859	53.3%	43.9%	D+9.4
Precinct -BELLEVILLE 22BELLEVILLE 22	529	291	34	854	61.9%	34.1%	D+27.9
Precinct -CASEYVILLE 04CASEYVILLE 04	522	295	25	842	62.0%	35.0%	D+27.0
Precinct -ST CLAIR 08ST CLAIR 08	470	346	26	842	55.8%	41.1%	D+14.7
Precinct -BELLEVILLE 16BELLEVILLE 16	407	399	34	840	48.5%	47.5%	D+1.0
Precinct -SHILOH VALLEY 3SHILOH VALLEY 3	366	417	28	811	45.1%	51.4%	R+6.3
Precinct -BELLEVILLE 03BELLEVILLE 03	440	332	25	797	55.2%	41.7%	D+13.6
Precinct -CASEYVILLE 07CASEYVILLE 07	334	432	29	795	42.0%	54.3%	R+12.3
Precinct -CENTREVILLE 03CENTREVILLE 03	701	67	24	792	88.5%	8.5%	D+80.1
Precinct -CASEYVILLE 11CASEYVILLE 11	464	309	18	791	58.7%	39.1%	D+19.6
Precinct -BELLEVILLE 01BELLEVILLE 01	417	348	24	789	52.9%	44.1%	D+8.7
Precinct -BELLEVILLE 10BELLEVILLE 10	474	290	24	788	60.2%	36.8%	D+23.4
Precinct -ST CLAIR 07ST CLAIR 07	520	243	22	785	66.2%	31.0%	D+35.3
Precinct -ST CLAIR 12ST CLAIR 12	451	300	22	773	58.3%	38.8%	D+19.5
Precinct -BELLEVILLE 07BELLEVILLE 07	430	307	26	763	56.4%	40.2%	D+16.1
Precinct -NEW ATHENS 2NEW ATHENS 2	170	577	15	762	22.3%	75.7%	R+53.4
Precinct -CASEYVILLE 01CASEYVILLE 01	279	467	15	761	36.7%	61.4%	R+24.7
Precinct -BELLEVILLE 15BELLEVILLE 15	563	173	17	753	74.8%	23.0%	D+51.8
Precinct -BELLEVILLE 02BELLEVILLE 02	439	278	29	746	58.8%	37.3%	D+21.6
Precinct -CENTREVILLE 07CENTREVILLE 07	549	181	12	742	74.0%	24.4%	D+49.6
Precinct -ST CLAIR 18ST CLAIR 18	366	344	26	736	49.7%	46.7%	D+3.0
Precinct -ST CLAIR 17ST CLAIR 17	370	331	33	734	50.4%	45.1%	D+5.3
Precinct -ST CLAIR 10ST CLAIR 10	493	199	28	720	68.5%	27.6%	D+40.8
Precinct -CENTREVILLE 09CENTREVILLE 09	523	156	34	713	73.4%	21.9%	D+51.5
Precinct -BELLEVILLE 04BELLEVILLE 04	384	293	33	710	54.1%	41.3%	D+12.8
Precinct -CASEYVILLE 15CASEYVILLE 15	462	219	24	705	65.5%	31.1%	D+34.5
Precinct -CASEYVILLE 21CASEYVILLE 21	279	400	25	704	39.6%	56.8%	R+17.2
Precinct -BELLEVILLE 17BELLEVILLE 17	397	278	24	699	56.8%	39.8%	D+17.0
Precinct -CENTREVILLE 06CENTREVILLE 06	624	53	15	692	90.2%	7.7%	D+82.5
Precinct -BELLEVILLE 12BELLEVILLE 12	540	135	15	690	78.3%	19.6%	D+58.7
Precinct -EAST ST LOUIS 13EAST ST LOUIS 13	605	45	25	675	89.6%	6.7%	D+83.0
Precinct -BELLEVILLE 08BELLEVILLE 08	384	259	24	667	57.6%	38.8%	D+18.7
Precinct -ST CLAIR 16ST CLAIR 16	483	160	23	666	72.5%	24.0%	D+48.5
Precinct -CASEYVILLE 13CASEYVILLE 13	393	252	17	662	59.4%	38.1%	D+21.3
Precinct -CENTREVILLE 05CENTREVILLE 05	486	146	21	653	74.4%	22.4%	D+52.1
Precinct -EAST ST LOUIS 07EAST ST LOUIS 07	600	32	21	653	91.9%	4.9%	D+87.0
Precinct -BELLEVILLE 23BELLEVILLE 23	356	267	28	651	54.7%	41.0%	D+13.7
Precinct -BELLEVILLE 21BELLEVILLE 21	404	228	18	650	62.2%	35.1%	D+27.1
Precinct -MILLSTADT 4MILLSTADT 4	225	398	24	647	34.8%	61.5%	R+26.7
Precinct -BELLEVILLE 14BELLEVILLE 14	427	188	26	641	66.6%	29.3%	D+37.3
Precinct -EAST ST LOUIS 04EAST ST LOUIS 04	592	24	16	632	93.7%	3.8%	D+89.9
Precinct -ST CLAIR 21ST CLAIR 21	415	199	16	630	65.9%	31.6%	D+34.3
Precinct -EAST ST LOUIS 11EAST ST LOUIS 11	580	34	12	626	92.7%	5.4%	D+87.2
Precinct -STOOKEY 07STOOKEY 07	371	232	20	623	59.6%	37.2%	D+22.3
Precinct -CASEYVILLE 17CASEYVILLE 17	245	357	20	622	39.4%	57.4%	R+18.0
Precinct -BELLEVILLE 18BELLEVILLE 18	380	213	25	618	61.5%	34.5%	D+27.0
Precinct -NEW ATHENS 1NEW ATHENS 1	122	473	21	616	19.8%	76.8%	R+57.0
Precinct -PRAIRIE DU LONG 1PRAIRIE DU LONG 1	146	444	24	614	23.8%	72.3%	R+48.5
Precinct -CANTEEN 2CANTEEN 2	358	231	24	613	58.4%	37.7%	D+20.7
Precinct -SMITHTON 2SMITHTON 2	181	408	23	612	29.6%	66.7%	R+37.1
Precinct -STOOKEY 03STOOKEY 03	365	214	23	602	60.6%	35.5%	D+25.1
Precinct -EAST ST LOUIS 03EAST ST LOUIS 03	537	33	20	590	91.0%	5.6%	D+85.4
Precinct -ST CLAIR 20ST CLAIR 20	298	253	39	590	50.5%	42.9%	D+7.6
Precinct -CENTREVILLE 04CENTREVILLE 04	348	218	20	586	59.4%	37.2%	D+22.2
Precinct -SHILOH VALLEY 4SHILOH VALLEY 4	250	319	16	585	42.7%	54.5%	R+11.8
Precinct -STOOKEY 06STOOKEY 06	202	349	17	568	35.6%	61.4%	R+25.9
Precinct -SUGAR LOAF 5SUGAR LOAF 5	178	381	9	568	31.3%	67.1%	R+35.7
Precinct -CENTREVILLE 08CENTREVILLE 08	361	189	17	567	63.7%	33.3%	D+30.3
Precinct -ST CLAIR 13ST CLAIR 13	280	272	15	567	49.4%	48.0%	D+1.4
Precinct -ST CLAIR 09ST CLAIR 09	276	275	15	566	48.8%	48.6%	D+0.2
Precinct -ST CLAIR 19ST CLAIR 19	373	163	23	559	66.7%	29.2%	D+37.6
Precinct -CASEYVILLE 09CASEYVILLE 09	314	209	23	546	57.5%	38.3%	D+19.2
Precinct -CENTREVILLE 01CENTREVILLE 01	487	36	18	541	90.0%	6.7%	D+83.4
Precinct -ST CLAIR 05ST CLAIR 05	315	200	21	536	58.8%	37.3%	D+21.5
Precinct -EAST ST LOUIS 01EAST ST LOUIS 01	502	16	12	530	94.7%	3.0%	D+91.7
Precinct -ST CLAIR 02ST CLAIR 02	228	286	16	530	43.0%	54.0%	R+10.9
Precinct -CANTEEN 1CANTEEN 1	287	218	24	529	54.3%	41.2%	D+13.0
Precinct -LEBANON 2LEBANON 2	220	293	14	527	41.7%	55.6%	R+13.9
Precinct -STOOKEY 04STOOKEY 04	270	237	19	526	51.3%	45.1%	D+6.3
Precinct -CASEYVILLE 19CASEYVILLE 19	360	143	21	524	68.7%	27.3%	D+41.4
Precinct -CENTREVILLE 10CENTREVILLE 10	411	92	20	523	78.6%	17.6%	D+61.0
Precinct -FAYETTEVILLE 02FAYETTEVILLE 02	91	412	20	523	17.4%	78.8%	R+61.4
Precinct -ST CLAIR 11ST CLAIR 11	270	224	18	512	52.7%	43.8%	D+9.0
Precinct -EAST ST LOUIS 05EAST ST LOUIS 05	453	34	14	501	90.4%	6.8%	D+83.6
Precinct -BELLEVILLE 09BELLEVILLE 09	289	189	21	499	57.9%	37.9%	D+20.0
Precinct -CENTREVILLE 02CENTREVILLE 02	347	135	16	498	69.7%	27.1%	D+42.6
Precinct -BELLEVILLE 13BELLEVILLE 13	353	136	8	497	71.0%	27.4%	D+43.7
Precinct -EAST ST LOUIS 08EAST ST LOUIS 08	449	25	9	483	93.0%	5.2%	D+87.8
Precinct -MILLSTADT 3MILLSTADT 3	115	348	14	477	24.1%	73.0%	R+48.8
Precinct -BELLEVILLE 25BELLEVILLE 25	255	200	19	474	53.8%	42.2%	D+11.6
Precinct -EAST ST LOUIS 12EAST ST LOUIS 12	427	26	4	457	93.4%	5.7%	D+87.7
Precinct -EAST ST LOUIS 10EAST ST LOUIS 10	414	24	13	451	91.8%	5.3%	D+86.5
Precinct -ENGELMANNENGELMANN	94	350	7	451	20.8%	77.6%	R+56.8
Precinct -LENZBURGLENZBURG	83	351	11	445	18.7%	78.9%	R+60.2
Precinct -EAST ST LOUIS 06EAST ST LOUIS 06	398	17	8	423	94.1%	4.0%	D+90.1
Precinct -CANTEEN 3CANTEEN 3	386	25	11	422	91.5%	5.9%	D+85.5
Precinct -ST CLAIR 04ST CLAIR 04	174	224	13	411	42.3%	54.5%	R+12.2
Precinct -SUGAR LOAF 4SUGAR LOAF 4	81	277	7	365	22.2%	75.9%	R+53.7
Precinct -EAST ST LOUIS 02EAST ST LOUIS 02	341	16	7	364	93.7%	4.4%	D+89.3
Precinct -BELLEVILLE 06BELLEVILLE 06	220	122	12	354	62.1%	34.5%	D+27.7
Precinct -LEBANON 3LEBANON 3	79	256	6	341	23.2%	75.1%	R+51.9
Precinct -EAST ST LOUIS 09EAST ST LOUIS 09	309	18	5	332	93.1%	5.4%	D+87.7
Precinct -SUGAR LOAF 2SUGAR LOAF 2	97	219	9	325	29.8%	67.4%	R+37.5
Precinct -FAYETTEVILLE 01FAYETTEVILLE 01	61	251	9	321	19.0%	78.2%	R+59.2
Precinct -CASEYVILLE 16CASEYVILLE 16	139	166	15	320	43.4%	51.9%	R+8.4
Precinct -CASEYVILLE 20CASEYVILLE 20	136	146	13	295	46.1%	49.5%	R+3.4
Precinct -CANTEEN 4CANTEEN 4	200	15	13	228	87.7%	6.6%	D+81.1
Precinct -CANTEEN 5CANTEEN 5	84	138	6	228	36.8%	60.5%	R+23.7
Precinct -STITESSTITES	151	8	4	163	92.6%	4.9%	D+87.7
BELLEVILLE 1 Voting District17_171630201	0	0	0	0	—	—	Even
BELLEVILLE 10 Voting District17_171630210	0	0	0	0	—	—	Even
BELLEVILLE 11 Voting District17_171630211	0	0	0	0	—	—	Even
BELLEVILLE 12 Voting District17_171630212	0	0	0	0	—	—	Even
BELLEVILLE 13 Voting District17_171630213	0	0	0	0	—	—	Even
BELLEVILLE 14 Voting District17_171630214	0	0	0	0	—	—	Even
BELLEVILLE 15 Voting District17_171630215	0	0	0	0	—	—	Even
BELLEVILLE 16 Voting District17_171630216	0	0	0	0	—	—	Even
BELLEVILLE 17 Voting District17_171630217	0	0	0	0	—	—	Even
BELLEVILLE 18 Voting District17_171630218	0	0	0	0	—	—	Even
BELLEVILLE 19 Voting District17_171630219	0	0	0	0	—	—	Even
BELLEVILLE 2 Voting District17_171630202	0	0	0	0	—	—	Even
BELLEVILLE 20 Voting District17_171630220	0	0	0	0	—	—	Even
BELLEVILLE 21 Voting District17_171630221	0	0	0	0	—	—	Even
BELLEVILLE 22 Voting District17_171630222	0	0	0	0	—	—	Even
BELLEVILLE 23 Voting District17_171630223	0	0	0	0	—	—	Even
BELLEVILLE 24 Voting District17_171630224	0	0	0	0	—	—	Even
BELLEVILLE 25 Voting District17_171630225	0	0	0	0	—	—	Even
BELLEVILLE 26 Voting District17_171630226	0	0	0	0	—	—	Even
BELLEVILLE 27 Voting District17_171630227	0	0	0	0	—	—	Even
BELLEVILLE 28 Voting District17_171630228	0	0	0	0	—	—	Even
BELLEVILLE 29 Voting District17_171630229	0	0	0	0	—	—	Even
BELLEVILLE 3 Voting District17_171630203	0	0	0	0	—	—	Even
BELLEVILLE 30 Voting District17_171630230	0	0	0	0	—	—	Even
BELLEVILLE 31 Voting District17_171630231	0	0	0	0	—	—	Even
BELLEVILLE 32 Voting District17_171630232	0	0	0	0	—	—	Even
BELLEVILLE 33 Voting District17_171630233	0	0	0	0	—	—	Even
BELLEVILLE 4 Voting District17_171630204	0	0	0	0	—	—	Even
BELLEVILLE 5 Voting District17_171630205	0	0	0	0	—	—	Even
BELLEVILLE 6 Voting District17_171630206	0	0	0	0	—	—	Even
BELLEVILLE 7 Voting District17_171630207	0	0	0	0	—	—	Even
BELLEVILLE 8 Voting District17_171630208	0	0	0	0	—	—	Even
BELLEVILLE 9 Voting District17_171630209	0	0	0	0	—	—	Even
CANTEEN 1 Voting District17_171631101	0	0	0	0	—	—	Even
CANTEEN 10 Voting District17_171631110	0	0	0	0	—	—	Even
CANTEEN 11 Voting District17_171631111	0	0	0	0	—	—	Even
CANTEEN 12 Voting District17_171631112	0	0	0	0	—	—	Even
CANTEEN 13 Voting District17_171631113	0	0	0	0	—	—	Even
CANTEEN 14 Voting District17_171631114	0	0	0	0	—	—	Even
CANTEEN 2 Voting District17_171631102	0	0	0	0	—	—	Even
CANTEEN 3 Voting District17_171631103	0	0	0	0	—	—	Even
CANTEEN 4 Voting District17_171631104	0	0	0	0	—	—	Even
CANTEEN 5 Voting District17_171631105	0	0	0	0	—	—	Even
CANTEEN 6 Voting District17_171631106	0	0	0	0	—	—	Even
CANTEEN 7 Voting District17_171631107	0	0	0	0	—	—	Even
CANTEEN 8 Voting District17_171631108	0	0	0	0	—	—	Even
CANTEEN 9 Voting District17_171631109	0	0	0	0	—	—	Even
CASEYVILLE 1 Voting District17_171630801	0	0	0	0	—	—	Even
CASEYVILLE 10 Voting District17_171630810	0	0	0	0	—	—	Even
CASEYVILLE 13 Voting District17_171630813	0	0	0	0	—	—	Even
CASEYVILLE 14 Voting District17_171630814	0	0	0	0	—	—	Even
CASEYVILLE 15 Voting District17_171630815	0	0	0	0	—	—	Even
CASEYVILLE 16 Voting District17_171630816	0	0	0	0	—	—	Even
CASEYVILLE 17 Voting District17_171630817	0	0	0	0	—	—	Even
CASEYVILLE 18 Voting District17_171630818	0	0	0	0	—	—	Even
CASEYVILLE 19 Voting District17_171630819	0	0	0	0	—	—	Even
CASEYVILLE 2 Voting District17_171630802	0	0	0	0	—	—	Even
CASEYVILLE 20 Voting District17_171630820	0	0	0	0	—	—	Even
CASEYVILLE 21 Voting District17_171630821	0	0	0	0	—	—	Even
CASEYVILLE 22 Voting District17_171630822	0	0	0	0	—	—	Even
CASEYVILLE 23 Voting District17_171630823	0	0	0	0	—	—	Even
CASEYVILLE 24 Voting District17_171630824	0	0	0	0	—	—	Even
CASEYVILLE 25 Voting District17_171630825	0	0	0	0	—	—	Even
CASEYVILLE 3 Voting District17_171630803	0	0	0	0	—	—	Even
CASEYVILLE 4 Voting District17_171630804	0	0	0	0	—	—	Even
CASEYVILLE 5 Voting District17_171630805	0	0	0	0	—	—	Even
CASEYVILLE 6 Voting District17_171630806	0	0	0	0	—	—	Even
CASEYVILLE 7 Voting District17_171630807	0	0	0	0	—	—	Even
CASEYVILLE 8 Voting District17_171630808	0	0	0	0	—	—	Even
CASEYVILLE 9 Voting District17_171630809	0	0	0	0	—	—	Even
CENTREVILLE 1 Voting District17_171631001	0	0	0	0	—	—	Even
CENTREVILLE 10 Voting District17_171631010	0	0	0	0	—	—	Even
CENTREVILLE 11 Voting District17_171631011	0	0	0	0	—	—	Even
CENTREVILLE 12 Voting District17_171631012	0	0	0	0	—	—	Even
CENTREVILLE 13 Voting District17_171631013	0	0	0	0	—	—	Even
CENTREVILLE 14 Voting District17_171631014	0	0	0	0	—	—	Even
CENTREVILLE 15 Voting District17_171631015	0	0	0	0	—	—	Even
CENTREVILLE 16 Voting District17_171631016	0	0	0	0	—	—	Even
CENTREVILLE 17 Voting District17_171631017	0	0	0	0	—	—	Even
CENTREVILLE 18 Voting District17_171631018	0	0	0	0	—	—	Even
CENTREVILLE 19 Voting District17_171631019	0	0	0	0	—	—	Even
CENTREVILLE 2 Voting District17_171631002	0	0	0	0	—	—	Even
CENTREVILLE 20 Voting District17_171631020	0	0	0	0	—	—	Even
CENTREVILLE 21 Voting District17_171631021	0	0	0	0	—	—	Even
CENTREVILLE 22 Voting District17_171631022	0	0	0	0	—	—	Even
CENTREVILLE 23 Voting District17_171631023	0	0	0	0	—	—	Even
CENTREVILLE 24 Voting District17_171631024	0	0	0	0	—	—	Even
CENTREVILLE 25 Voting District17_171631025	0	0	0	0	—	—	Even
CENTREVILLE 26 Voting District17_171631026	0	0	0	0	—	—	Even
CENTREVILLE 27 Voting District17_171631027	0	0	0	0	—	—	Even
CENTREVILLE 3 Voting District17_171631003	0	0	0	0	—	—	Even
CENTREVILLE 4 Voting District17_171631004	0	0	0	0	—	—	Even
CENTREVILLE 5 Voting District17_171631005	0	0	0	0	—	—	Even
CENTREVILLE 6 Voting District17_171631006	0	0	0	0	—	—	Even
CENTREVILLE 7 Voting District17_171631007	0	0	0	0	—	—	Even
CENTREVILLE 8 Voting District17_171631008	0	0	0	0	—	—	Even
CENTREVILLE 9 Voting District17_171631009	0	0	0	0	—	—	Even
EAST ST. LOUIS 1 Voting District17_17163ES01	0	0	0	0	—	—	Even
EAST ST. LOUIS 10 Voting District17_17163ES10	0	0	0	0	—	—	Even
EAST ST. LOUIS 11 Voting District17_17163ES11	0	0	0	0	—	—	Even
EAST ST. LOUIS 12 Voting District17_17163ES12	0	0	0	0	—	—	Even
EAST ST. LOUIS 13 Voting District17_17163ES13	0	0	0	0	—	—	Even
EAST ST. LOUIS 14 Voting District17_17163ES14	0	0	0	0	—	—	Even
EAST ST. LOUIS 15 Voting District17_17163ES15	0	0	0	0	—	—	Even
EAST ST. LOUIS 16 Voting District17_17163ES16	0	0	0	0	—	—	Even
EAST ST. LOUIS 17 Voting District17_17163ES17	0	0	0	0	—	—	Even
EAST ST. LOUIS 18 Voting District17_17163ES18	0	0	0	0	—	—	Even
EAST ST. LOUIS 19 Voting District17_17163ES19	0	0	0	0	—	—	Even
EAST ST. LOUIS 2 Voting District17_17163ES02	0	0	0	0	—	—	Even
EAST ST. LOUIS 20 Voting District17_17163ES20	0	0	0	0	—	—	Even
EAST ST. LOUIS 21 Voting District17_17163ES21	0	0	0	0	—	—	Even
EAST ST. LOUIS 22 Voting District17_17163ES22	0	0	0	0	—	—	Even
EAST ST. LOUIS 23 Voting District17_17163ES23	0	0	0	0	—	—	Even
EAST ST. LOUIS 24 Voting District17_17163ES24	0	0	0	0	—	—	Even
EAST ST. LOUIS 25 Voting District17_17163ES25	0	0	0	0	—	—	Even
EAST ST. LOUIS 26 Voting District17_17163ES26	0	0	0	0	—	—	Even
EAST ST. LOUIS 27 Voting District17_17163ES27	0	0	0	0	—	—	Even
EAST ST. LOUIS 28 Voting District17_17163ES28	0	0	0	0	—	—	Even
EAST ST. LOUIS 29 Voting District17_17163ES29	0	0	0	0	—	—	Even
EAST ST. LOUIS 3 Voting District17_17163ES03	0	0	0	0	—	—	Even
EAST ST. LOUIS 30 Voting District17_17163ES30	0	0	0	0	—	—	Even
EAST ST. LOUIS 31 Voting District17_17163ES31	0	0	0	0	—	—	Even
EAST ST. LOUIS 32 Voting District17_17163ES32	0	0	0	0	—	—	Even
EAST ST. LOUIS 33 Voting District17_17163ES33	0	0	0	0	—	—	Even
EAST ST. LOUIS 34 Voting District17_17163ES34	0	0	0	0	—	—	Even
EAST ST. LOUIS 35 Voting District17_17163ES35	0	0	0	0	—	—	Even
EAST ST. LOUIS 36 Voting District17_17163ES36	0	0	0	0	—	—	Even
EAST ST. LOUIS 37 Voting District17_17163ES37	0	0	0	0	—	—	Even
EAST ST. LOUIS 38 Voting District17_17163ES38	0	0	0	0	—	—	Even
EAST ST. LOUIS 39 Voting District17_17163ES39	0	0	0	0	—	—	Even
EAST ST. LOUIS 4 Voting District17_17163ES04	0	0	0	0	—	—	Even
EAST ST. LOUIS 40 Voting District17_17163ES40	0	0	0	0	—	—	Even
EAST ST. LOUIS 41 Voting District17_17163ES41	0	0	0	0	—	—	Even
EAST ST. LOUIS 42 Voting District17_17163ES42	0	0	0	0	—	—	Even
EAST ST. LOUIS 43 Voting District17_17163ES43	0	0	0	0	—	—	Even
EAST ST. LOUIS 44 Voting District17_17163ES44	0	0	0	0	—	—	Even
EAST ST. LOUIS 5 Voting District17_17163ES05	0	0	0	0	—	—	Even
EAST ST. LOUIS 6 Voting District17_17163ES06	0	0	0	0	—	—	Even
EAST ST. LOUIS 7 Voting District17_17163ES07	0	0	0	0	—	—	Even
EAST ST. LOUIS 8 Voting District17_17163ES08	0	0	0	0	—	—	Even
EAST ST. LOUIS 9 Voting District17_17163ES09	0	0	0	0	—	—	Even
ENGELMANN Voting District17_171631401	0	0	0	0	—	—	Even
FAYETTEVILLE 1 Voting District17_171631501	0	0	0	0	—	—	Even
FAYETTEVILLE 2 Voting District17_171631502	0	0	0	0	—	—	Even
FREEBURG 1 Voting District17_171631701	0	0	0	0	—	—	Even
FREEBURG 2 Voting District17_171631702	0	0	0	0	—	—	Even
FREEBURG 3 Voting District17_171631703	0	0	0	0	—	—	Even
FREEBURG 4 Voting District17_171631704	0	0	0	0	—	—	Even
LEBANON 1 Voting District17_171630401	0	0	0	0	—	—	Even
LEBANON 2 Voting District17_171630402	0	0	0	0	—	—	Even
LEBANON 3 Voting District17_171630403	0	0	0	0	—	—	Even
LENZBURG Voting District17_171631901	0	0	0	0	—	—	Even
MARISSA 1 Voting District17_171631601	0	0	0	0	—	—	Even
MARISSA 2 Voting District17_171631602	0	0	0	0	—	—	Even
MARISSA 3 Voting District17_171631603	0	0	0	0	—	—	Even
MASCOUTAH 1 Voting District17_171630301	0	0	0	0	—	—	Even
MASCOUTAH 2 Voting District17_171630302	0	0	0	0	—	—	Even
MASCOUTAH 3 Voting District17_171630303	0	0	0	0	—	—	Even
MASCOUTAH 4 Voting District17_171630304	0	0	0	0	—	—	Even
MILLSTADT 1 Voting District17_171632201	0	0	0	0	—	—	Even
MILLSTADT 2 Voting District17_171632202	0	0	0	0	—	—	Even
MILLSTADT 3 Voting District17_171632203	0	0	0	0	—	—	Even
MILLSTADT 4 Voting District17_171632204	0	0	0	0	—	—	Even
NEW ATHENS 1 Voting District17_171631801	0	0	0	0	—	—	Even
NEW ATHENS 2 Voting District17_171631802	0	0	0	0	—	—	Even
O'FALLON 1 Voting District17_171630601	0	0	0	0	—	—	Even
O'FALLON 10 Voting District17_171630610	0	0	0	0	—	—	Even
O'FALLON 2 Voting District17_171630602	0	0	0	0	—	—	Even
O'FALLON 3 Voting District17_171630603	0	0	0	0	—	—	Even
O'FALLON 4 Voting District17_171630604	0	0	0	0	—	—	Even
O'FALLON 5 Voting District17_171630605	0	0	0	0	—	—	Even
O'FALLON 6 Voting District17_171630606	0	0	0	0	—	—	Even
O'FALLON 7 Voting District17_171630607	0	0	0	0	—	—	Even
O'FALLON 8 Voting District17_171630608	0	0	0	0	—	—	Even
O'FALLON 9 Voting District17_171630609	0	0	0	0	—	—	Even
PRAIRIE DU LONG Voting District17_171632001	0	0	0	0	—	—	Even
Precinct -O'FALLON 01O'FALLON 01	0	0	0	0	—	—	Even
Precinct -O'FALLON 02O'FALLON 02	0	0	0	0	—	—	Even
Precinct -O'FALLON 03O'FALLON 03	0	0	0	0	—	—	Even
Precinct -O'FALLON 04O'FALLON 04	0	0	0	0	—	—	Even
Precinct -O'FALLON 05O'FALLON 05	0	0	0	0	—	—	Even
Precinct -O'FALLON 06O'FALLON 06	0	0	0	0	—	—	Even
Precinct -O'FALLON 07O'FALLON 07	0	0	0	0	—	—	Even
Precinct -O'FALLON 08O'FALLON 08	0	0	0	0	—	—	Even
Precinct -O'FALLON 09O'FALLON 09	0	0	0	0	—	—	Even
Precinct -O'FALLON 10O'FALLON 10	0	0	0	0	—	—	Even
Precinct -O'FALLON 11O'FALLON 11	0	0	0	0	—	—	Even
Precinct -O'FALLON 12O'FALLON 12	0	0	0	0	—	—	Even
Precinct -O'FALLON 13O'FALLON 13	0	0	0	0	—	—	Even
Precinct -O'FALLON 14O'FALLON 14	0	0	0	0	—	—	Even
Precinct -O'FALLON 15O'FALLON 15	0	0	0	0	—	—	Even
Precinct -O'FALLON 16O'FALLON 16	0	0	0	0	—	—	Even
Precinct -O'FALLON 17O'FALLON 17	0	0	0	0	—	—	Even
Precinct -O'FALLON 18O'FALLON 18	0	0	0	0	—	—	Even
SHILOH VALLEY 1 Voting District17_171630501	0	0	0	0	—	—	Even
SHILOH VALLEY 2 Voting District17_171630502	0	0	0	0	—	—	Even
SHILOH VALLEY 3 Voting District17_171630503	0	0	0	0	—	—	Even
SHILOH VALLEY 4 Voting District17_171630504	0	0	0	0	—	—	Even
SMITHTON 1 Voting District17_171632101	0	0	0	0	—	—	Even
SMITHTON 2 Voting District17_171632102	0	0	0	0	—	—	Even
SMITHTON 3 Voting District17_171632103	0	0	0	0	—	—	Even
SMITHTON 4 Voting District17_171632104	0	0	0	0	—	—	Even
ST CLAIR 1 Voting District17_171630701	0	0	0	0	—	—	Even
ST CLAIR 10 Voting District17_171630710	0	0	0	0	—	—	Even
ST CLAIR 11 Voting District17_171630711	0	0	0	0	—	—	Even
ST CLAIR 12 Voting District17_171630712	0	0	0	0	—	—	Even
ST CLAIR 13 Voting District17_171630713	0	0	0	0	—	—	Even
ST CLAIR 14 Voting District17_171630714	0	0	0	0	—	—	Even
ST CLAIR 15 Voting District17_171630715	0	0	0	0	—	—	Even
ST CLAIR 16 Voting District17_171630716	0	0	0	0	—	—	Even
ST CLAIR 17 Voting District17_171630717	0	0	0	0	—	—	Even
ST CLAIR 18 Voting District17_171630718	0	0	0	0	—	—	Even
ST CLAIR 19 Voting District17_171630719	0	0	0	0	—	—	Even
ST CLAIR 2 Voting District17_171630702	0	0	0	0	—	—	Even
ST CLAIR 20 Voting District17_171630720	0	0	0	0	—	—	Even
ST CLAIR 21 Voting District17_171630721	0	0	0	0	—	—	Even
ST CLAIR 22 Voting District17_171630722	0	0	0	0	—	—	Even
ST CLAIR 3 Voting District17_171630703	0	0	0	0	—	—	Even
ST CLAIR 4 Voting District17_171630704	0	0	0	0	—	—	Even
ST CLAIR 5 Voting District17_171630705	0	0	0	0	—	—	Even
ST CLAIR 6 Voting District17_171630706	0	0	0	0	—	—	Even
ST CLAIR 7 Voting District17_171630707	0	0	0	0	—	—	Even
ST CLAIR 8 Voting District17_171630708	0	0	0	0	—	—	Even
ST CLAIR 9 Voting District17_171630709	0	0	0	0	—	—	Even
STITES 1 Voting District17_171631301	0	0	0	0	—	—	Even
STOOKEY 1 Voting District17_171630901	0	0	0	0	—	—	Even
STOOKEY 10 Voting District17_171630910	0	0	0	0	—	—	Even
STOOKEY 2 Voting District17_171630902	0	0	0	0	—	—	Even
STOOKEY 3 Voting District17_171630903	0	0	0	0	—	—	Even
STOOKEY 4 Voting District17_171630904	0	0	0	0	—	—	Even
STOOKEY 5 Voting District17_171630905	0	0	0	0	—	—	Even
STOOKEY 6 Voting District17_171630906	0	0	0	0	—	—	Even
STOOKEY 7 Voting District17_171630907	0	0	0	0	—	—	Even
STOOKEY 8 Voting District17_171630908	0	0	0	0	—	—	Even
STOOKEY 9 Voting District17_171630909	0	0	0	0	—	—	Even
SUGAR LOAF 1 Voting District17_171631201	0	0	0	0	—	—	Even
SUGAR LOAF 2 Voting District17_171631202	0	0	0	0	—	—	Even
SUGAR LOAF 3 Voting District17_171631203	0	0	0	0	—	—	Even
SUGAR LOAF 4 Voting District17_171631204	0	0	0	0	—	—	Even
SUGAR LOAF 5 Voting District17_171631205	0	0	0	0	—	—	Even
SUGAR LOAF 6 Voting District17_171631206	0	0	0	0	—	—	Even

presidential history

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	+6.6%
1896	−3.5%
1900	+0.3%
1904	−17.3%
1908	−4.9%
1912	+10.3%
1916	+1.1%
1920	−18.1%
1924	−16.6%
1928	+7.9%
1932	+33.8%
1936	+32.9%
1940	+19.5%
1944	+18.0%
1948	+27.3%
1952	+20.5%
1956	+14.2%
1960	+23.1%
1964	+44.8%
1968	+16.1%
1972	−4.0%
1976	+18.6%
1980	+4.0%
1984	+1.2%
1988	+14.4%
1992	+23.9%
1996	+21.5%
2000	+13.6%
2004	+10.8%
2008	+22.4%
2012	+14.3%
2016	+5.7%
2020	+8.6%
2024	+7.8%

DemocraticRepublican

38 presidential elections

Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.
Year	Won	Democratic	Republican	Other	Margin	Swing	vs U.S.	Total
2024	D	52.9%Harris63,433	45.0%Trump54,021	1.8%Kennedy2,201	D+7.8	R+0.8	D+9.3	119,962
2020	D	52.8%Biden68,325	44.2%Trump57,150	1.2%Jorgensen1,615	D+8.6	D+3.0	D+4.2	129,405
2016	D	50.0%Clinton60,756	44.4%Trump53,857	3.4%Johnson4,181	D+5.7	R+8.6	D+3.6	121,436
2012	D	56.2%Obama67,285	41.8%Romney50,125	1.2%JOHNSON1,383	D+14.3	R+8.1	D+10.5	119,827
2008	D	60.6%Obama76,160	38.1%McCain47,958	1.3%	D+22.4	D+11.6	D+15.2	125,744
2004	D	55.1%Kerry62,410	44.4%Bush50,203	0.5%	D+10.8	R+2.8	D+13.2	113,189
2000	D	55.7%Gore55,961	42.1%Bush42,299	1.6%Nader1,569	D+13.6	R+7.9	D+13.1	100,393
1996	D	56.6%Clinton53,405	35.0%Dole33,066	7.4%Perot7,027	D+21.5	R+2.3	D+13.0	94,429
1992	D	53.6%Clinton57,625	29.7%Bush31,951	16.4%Perot17,592	D+23.9	D+9.5	D+18.3	107,541
1988	D	57.0%Dukakis55,465	42.6%Bush41,439	0.4%	D+14.4	D+13.2	D+22.1	97,313
1984	D	50.2%Mondale52,294	49.0%Reagan51,046	0.8%	D+1.2	R+2.8	D+19.4	104,148
1980	D	49.7%Carter50,046	45.8%Reagan46,063	4.5%	D+4.0	R+14.7	D+13.7	100,673
1976	D	58.6%Carter59,177	39.9%Ford40,333	1.5%	D+18.6	D+22.6	D+16.6	101,065
1972	R	47.5%McGovern46,636	51.5%Nixon50,519	1.0%	R+4.0	R+20.1	D+19.2	98,097
1968	D	50.3%Humphrey50,726	34.1%Nixon34,442	15.6%	D+16.1	R+28.6	D+16.8	100,874
1964	D	72.4%Johnson74,005	27.6%Goldwater28,226	0.0%	D+44.8	D+21.7	D+22.2	102,231
1960	D	61.4%Kennedy67,367	38.3%Nixon42,046	0.3%	D+23.1	D+8.9	D+22.9	109,751
1956	D	56.9%Stevenson55,295	42.8%Eisenhower41,528	0.3%	D+14.2	R+6.3	D+29.6	97,106
1952	D	60.0%Stevenson60,311	39.5%Eisenhower39,713	0.5%	D+20.5	R+6.8	D+31.3	100,503
1948	D	63.4%Truman54,260	36.1%Dewey30,883	0.6%	D+27.3	D+9.3	D+22.8	85,617
1944	D	58.8%Roosevelt48,325	40.8%Dewey33,557	0.4%	D+18.0	R+1.5	D+10.5	82,209
1940	D	59.5%Roosevelt53,482	40.0%Willkie35,998	0.5%	D+19.5	R+13.4	D+9.5	89,891
1936	D	64.8%Roosevelt54,238	31.9%Landon26,684	3.4%	D+32.9	R+0.9	D+8.6	83,762
1932	D	65.2%Roosevelt47,305	31.3%Hoover22,744	3.5%	D+33.8	D+26.0	D+16.1	72,571
1928	D	53.5%Smith36,374	45.6%Hoover31,026	0.9%	D+7.9	D+24.4	D+25.3	68,037
1924	R	29.3%Davis14,921	45.8%Coolidge23,380	24.4%La Follette12,468	R+16.6	D+1.5	D+8.6	50,994
1920	R	33.2%Cox14,032	51.3%Harding21,681	15.4%	R+18.1	R+19.2	D+8.1	42,231
1916	D	48.8%Wilson22,622	47.8%Hughes22,134	3.4%	D+1.1	R+9.3	R+2.1	46,331
1912	D	41.9%Wilson10,826	31.5%Taft8,156	26.6%	D+10.3	D+15.2	R+9.2	25,866
1908	R	43.7%Bryan11,342	48.7%Taft12,619	7.6%	R+4.9	D+12.4	D+4.6	25,934
1904	R	38.0%Parker8,200	55.3%Roosevelt11,926	6.7%	R+17.3	R+17.6	D+2.4	21,561
1900	D	49.0%Bryan9,827	48.7%McKinley9,764	2.4%	D+0.3	D+3.8	D+7.9	20,063
1896	R	47.5%Bryan8,345	51.0%McKinley8,960	1.6%	R+3.5	R+10.1	D+2.6	17,583
1892	D	51.4%Cleveland7,207	44.7%Harrison6,276	3.9%	D+6.6	—	D+5.0	14,034
1888	—	—	—	—	No data	—	—	—
1884	—	—	—	—	No data	—	—	—
1880	—	—	—	—	No data	—	—	—
1876	—	—	—	—	No data	—	—	—

Congressional elections · 2 Senate races

U.S. Senate

Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year	Won	Democratic	Republican	Total
2022	D	53.8%47,634	44.4%39,335	88,602
2020	D	52.6%66,801	44.0%55,898	126,941

voter registration

Registered voters

Total registered voters, over time

Registered voters

Voter registration in St. Clair County, IL
Year	Total registered
2016	182,814
2018	180,207
2020	4,030
2022	183,411
2024	188,339

domestic migration

Who moves in and out

Net migration over time, and who arrivals are — where they came from and what those places vote

−393 net domestic migration · 2025

20112025

Net −25,199 over 2011–2025 · gain loss

Arrivals reported $58,121 in average income, against $79,912 for residents who stayed — 27% lower. (IRS SOI, 2022–23)

The places arrivals came from lean D+0.2 on average — 7.7 points more Republican-leaning than St. Clair County, IL itself (D+7.8).

Where arrivals came from lean of each source

Madison County, IL983R+13.2
St. Louis County, MO560D+23.4
St. Louis city, MO411D+64.6
Monroe County, IL168R+36.3
Clinton County, IL146R+51.8
St. Charles County, MO102R+17.0

Where departures went households, 2022–23

Madison County, IL1,146
St. Louis County, MO626
St. Louis city, MO387
Monroe County, IL218
Clinton County, IL145
Jefferson County, MO126

Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.

Domestic migration in St. Clair County, IL in St. Clair County, IL: net domestic migration by year
Year	Net domestic migration
2011	−1,475
2012	−2,689
2013	−2,902
2014	−1,941
2015	−2,318
2016	−2,612
2017	−1,371
2018	−1,747
2019	−2,115
2021	−1,708
2022	−2,331
2023	−612
2024	−985
2025	−393

St. Clair County anchors Illinois's Metro East region across the Mississippi from St. Louis, with a diverse population and urban-suburban mix that has returned Democratic presidential margins in the single to low double digits for over two decades.

Across the recorded series it reached a Democratic high of 44.8 points in 1964 and a Republican high of 18.1 points in 1920. Between 2020 and 2024 the county moved 0.8 points toward the Republican candidate; the 2024 margin was 7.8 points.

A population of 253,694, a 59% non-Hispanic-white share, and a median household income of $73,854 describe the county. The county's voting pattern over the last decade is most similar to that of Jackson County and Baltimore city.

Political twins — counties

The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

population scale12-yr trendcollege share≠ 2000 margin

Norfolk city

Virginia

95.5twin score

2000–2008 trajectorypopulation scale≠ 2016 margin

Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.

Browse places by community — income, education, race & ethnicity, language — all community cuts →

Compare two places, side by side

Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →

Cite this page

All citations released under CC BY 4.0. Attribution: Akashic Intelligence.

St. Clair County, Illinois. Akashic. https://akashic.app/county/17163/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Embed this page

A live widget for your site — no API key, attribution built in, CC BY 4.0. All widgets & sizes →

<iframe src="https://akashic.app/embed/county/17163/stat-card/" width="100%" height="200" style="border:0;border-radius:12px;max-width:560px" title="St. Clair County, IL — Akashic" loading="lazy"></iframe>

Cities & towns in St. Clair County

Illinois at the ballot boxAll elections →

Presidentcounty detail2024 US Senatestatewide2022 Governorstate + county2022 US Houseall districts2024

Frequently asked questions

How did St. Clair County, Illinois vote in 2024?

In 2024, St. Clair County, Illinois voted Democratic by 7.8 points (D+7.8), carried by the Democratic candidate. Out of 119,962 votes cast, 63,433 went Democratic and 54,021 went Republican.

When did St. Clair County, Illinois last vote Republican?

The most recent presidential election in which St. Clair County, Illinois voted Republican was 1972.

How many people live in St. Clair County, Illinois?

St. Clair County, Illinois has a population of 253,694 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in St. Clair County, Illinois?

Median household income in St. Clair County, Illinois is $73,854 — below the national median of $80,734. The Illinois state median is $83,390.

What is the political history of St. Clair County, Illinois?

Akashic tracks 38 presidential elections in St. Clair County, Illinois from 1876 to 2024. Of those, 28 went Democratic and 6 went Republican.

Year	Democrat	Republican	Others	Total
2024	63,433	54,021	2,508	119,962
2020	68,325	57,150	3,930	129,405
2016	60,756	53,857	6,823	121,436
2012	67,285	50,125	2,417	119,827
2008	76,160	47,958	1,626	125,744
2004	62,410	50,203	576	113,189

Year

Democrat

Republican

Others

Total

2024

63,433

54,021

2,508

119,962

2020

68,325

57,150

3,930

129,405

2016

60,756

53,857

6,823

121,436

2012

67,285

50,125

2,417

119,827

2008

76,160

47,958

1,626

125,744

2004

62,410

50,203

576

113,189

Measure	St. Clair County	Illinois	United States
Median age	39.9	39.1	39.1
Age 18–24	8.1%	9.1%	9.2%
Age 65 and older	17.4%	16.9%	17.2%

Measure

St. Clair County

Illinois

United States

Median age

39.9

39.1

Age 18–24

8.1%

9.1%

9.2%

Age 65 and older

17.4%

16.9%

17.2%

Measure	St. Clair County	Illinois	United States
Median household income	$73,854	$83,390	$84,427
Poverty rate	13.6%	11.8%	12.5%
Bachelor's degree or higher (25+)	31.8%	37.9%	35.6%

Measure

St. Clair County

Illinois

United States

Median household income

$73,854

$83,390

$84,427

Poverty rate

13.6%

11.8%

12.5%

Bachelor's degree or higher (25+)

31.8%

37.9%

35.6%

Measure	St. Clair County	Illinois	United States
Speaks a non-English language at home	5.0%	24.1%	22.3%
Spanish	2.8%	14.0%	13.6%

Measure

St. Clair County

Illinois

United States

Speaks a non-English language at home

5.0%

24.1%

22.3%

Spanish

2.8%

14.0%

13.6%

Measure	St. Clair County	Illinois	United States
Catholic	13.4%	24.2%	18.6%
Evangelical Protestant	18.5%	11.7%	16.5%
Unclaimed / not counted	53.6%	49.2%	51.5%
Mainline Protestant	5.6%	5.3%	5.2%
Black Protestant	5.4%	3.0%	2.2%

Measure

St. Clair County

Illinois

United States

Catholic

13.4%

24.2%

18.6%

Evangelical Protestant

18.5%

11.7%

16.5%

Unclaimed / not counted

53.6%

49.2%

51.5%

Mainline Protestant

5.6%

5.3%

5.2%

Black Protestant

5.4%

3.0%

2.2%

St. Clair County precinct-level presidential election results for 2024

Precinct -MASCOUTAH 3MASCOUTAH 3

568

979

1,606

35.4%

61.0%

R+25.6

Precinct -CASEYVILLE 02CASEYVILLE 02

821

523

1,382

59.4%

37.8%

D+21.6

Precinct -MASCOUTAH 2MASCOUTAH 2

502

771

1,309

38.3%

58.9%

R+20.6

Precinct -STOOKEY 01STOOKEY 01

401

860

1,302

30.8%

66.1%

R+35.3

Precinct -CASEYVILLE 14CASEYVILLE 14

844

386

1,273

66.3%

30.3%

D+36.0

Precinct -CASEYVILLE 06CASEYVILLE 06

566

632

1,244

45.5%

50.8%

R+5.3

Precinct -ST CLAIR 23ST CLAIR 23

719

475

1,232

58.4%

38.6%

D+19.8

Precinct -LEBANON 1LEBANON 1

558

627

1,230

45.4%

51.0%

R+5.6

Precinct -SHILOH VALLEY 5SHILOH VALLEY 5

669

532

1,230

54.4%

43.3%

D+11.1

Precinct -MILLSTADT 2MILLSTADT 2

387

807

1,223

31.6%

66.0%

R+34.3

Precinct -ST CLAIR 24ST CLAIR 24

838

357

1,221

68.6%

29.2%

D+39.4

Precinct -BELLEVILLE 05BELLEVILLE 05

479

667

1,184

40.5%

56.3%

R+15.9

Precinct -CASEYVILLE 05CASEYVILLE 05

546

603

1,178

46.3%

51.2%

R+4.8

Precinct -ST CLAIR 14ST CLAIR 14

565

511

1,115

50.7%

45.8%

D+4.8

Precinct -MARISSA 1MARISSA 1

231

852

1,108

20.8%

76.9%

R+56.0

Precinct -PRAIRIE DU LONG 2PRAIRIE DU LONG 2

285

790

1,103

25.8%

71.6%

R+45.8

Precinct -SHILOH VALLEY 1SHILOH VALLEY 1

484

569

1,097

44.1%

51.9%

R+7.7

Precinct -ST CLAIR 15ST CLAIR 15

539

521

1,093

49.3%

47.7%

D+1.6

Precinct -CASEYVILLE 18CASEYVILLE 18

583

459

1,081

53.9%

42.5%

D+11.5

Precinct -CASEYVILLE 08CASEYVILLE 08

516

524

1,074

48.0%

48.8%

R+0.7

Precinct -ST CLAIR 06ST CLAIR 06

548

440

1,031

53.2%

42.7%

D+10.5

Precinct -SMITHTON 1SMITHTON 1

321

668

1,018

31.5%

65.6%

R+34.1

Precinct -CASEYVILLE 12CASEYVILLE 12

492

483

1,015

48.5%

47.6%

D+0.9

Precinct -FREEBURG 1FREEBURG 1

259

703

1,003

25.8%

70.1%

R+44.3

Precinct -MASCOUTAH 4MASCOUTAH 4

416

543

999

41.6%

54.4%

R+12.7

Precinct -MILLSTADT 1MILLSTADT 1

291

679

994

29.3%

68.3%

R+39.0

Precinct -BELLEVILLE 24BELLEVILLE 24

559

390

990

56.5%

39.4%

D+17.1

Precinct -SMITHTON 3SMITHTON 3

250

691

969

25.8%

71.3%

R+45.5

Precinct -SUGAR LOAF 1SUGAR LOAF 1

258

684

963

26.8%

71.0%

R+44.2

Precinct -SHILOH VALLEY 2SHILOH VALLEY 2

483

445

958

50.4%

46.5%

D+4.0

Precinct -FREEBURG 2FREEBURG 2

287

641

952

30.1%

67.3%

R+37.2

Precinct -CASEYVILLE 22CASEYVILLE 22

586

328

943

62.1%

34.8%

D+27.4

Precinct -ST CLAIR 22ST CLAIR 22

598

322

943

63.4%

34.1%

D+29.3

Precinct -BELLEVILLE 20BELLEVILLE 20

593

304

932

63.6%

32.6%

D+31.0

Precinct -STOOKEY 05STOOKEY 05

456

453

931

49.0%

48.7%

D+0.3

Precinct -MILLSTADT 5MILLSTADT 5

290

606

928

31.3%

65.3%

R+34.1

Precinct -FREEBURG 3FREEBURG 3

262

621

916

28.6%

67.8%

R+39.2

Precinct -MASCOUTAH 1MASCOUTAH 1

268

615

912

29.4%

67.4%

R+38.0

Precinct -STOOKEY 02STOOKEY 02

565

321

905

62.4%

35.5%

D+27.0

Precinct -CASEYVILLE 10CASEYVILLE 10

429

423

887

48.4%

47.7%

D+0.7

Precinct -ST CLAIR 03ST CLAIR 03

433

420

882

49.1%

47.6%

D+1.5

Precinct -SUGAR LOAF 3SUGAR LOAF 3

278

583

882

31.5%

66.1%

R+34.6

Precinct -BELLEVILLE 19BELLEVILLE 19

498

342

876

56.8%

39.0%

D+17.8

Precinct -BELLEVILLE 11BELLEVILLE 11

547

286

863

63.4%

33.1%

D+30.2

Precinct -CASEYVILLE 03CASEYVILLE 03

508

326

859

59.1%

38.0%

D+21.2

Precinct -ST CLAIR 01ST CLAIR 01

458

377

859

53.3%

43.9%

D+9.4

Precinct -BELLEVILLE 22BELLEVILLE 22

529

291

854

61.9%

34.1%

D+27.9

Precinct -CASEYVILLE 04CASEYVILLE 04

522

295

842

62.0%

35.0%

D+27.0

Precinct -ST CLAIR 08ST CLAIR 08

470

346

842

55.8%

41.1%

D+14.7

Precinct -BELLEVILLE 16BELLEVILLE 16

407

399

840

48.5%

47.5%

D+1.0

Precinct -SHILOH VALLEY 3SHILOH VALLEY 3

366

417

811

45.1%

51.4%

R+6.3

Precinct -BELLEVILLE 03BELLEVILLE 03

440

332

797

55.2%

41.7%

D+13.6

Precinct -CASEYVILLE 07CASEYVILLE 07

334

432

795

42.0%

54.3%

R+12.3

Precinct -CENTREVILLE 03CENTREVILLE 03

701

792

88.5%

8.5%

D+80.1

Precinct -CASEYVILLE 11CASEYVILLE 11

464

309

791

58.7%

39.1%

D+19.6

Precinct -BELLEVILLE 01BELLEVILLE 01

417

348

789

52.9%

44.1%

D+8.7

Precinct -BELLEVILLE 10BELLEVILLE 10

474

290

788

60.2%

36.8%

D+23.4

Precinct -ST CLAIR 07ST CLAIR 07

520

243

785

66.2%

31.0%

D+35.3

Precinct -ST CLAIR 12ST CLAIR 12

451

300

773

58.3%

38.8%

D+19.5

Precinct -BELLEVILLE 07BELLEVILLE 07

430

307

763

56.4%

40.2%

D+16.1

Precinct -NEW ATHENS 2NEW ATHENS 2

170

577

762

22.3%

75.7%

R+53.4

Precinct -CASEYVILLE 01CASEYVILLE 01

279

467

761

36.7%

61.4%

R+24.7

Precinct -BELLEVILLE 15BELLEVILLE 15

563

173

753

74.8%

23.0%

D+51.8

Precinct -BELLEVILLE 02BELLEVILLE 02

439

278

746

58.8%

37.3%

D+21.6

Precinct -CENTREVILLE 07CENTREVILLE 07

549

181

742

74.0%

24.4%

D+49.6

Precinct -ST CLAIR 18ST CLAIR 18

366

344

736

49.7%

46.7%

D+3.0

Precinct -ST CLAIR 17ST CLAIR 17

370

331

734

50.4%

45.1%

D+5.3

Precinct -ST CLAIR 10ST CLAIR 10

493

199

720

68.5%

27.6%

D+40.8

Precinct -CENTREVILLE 09CENTREVILLE 09

523

156

713

73.4%

21.9%

D+51.5

Precinct -BELLEVILLE 04BELLEVILLE 04

384

293

710

54.1%

41.3%

D+12.8

Precinct -CASEYVILLE 15CASEYVILLE 15

462

219

705

65.5%

31.1%

D+34.5

Precinct -CASEYVILLE 21CASEYVILLE 21

279

400

704

39.6%

56.8%

R+17.2

Precinct -BELLEVILLE 17BELLEVILLE 17

397

278

699

56.8%

39.8%

D+17.0

Precinct -CENTREVILLE 06CENTREVILLE 06

624

692

90.2%

7.7%

D+82.5

Precinct -BELLEVILLE 12BELLEVILLE 12

540

135

690

78.3%

19.6%

D+58.7

Precinct -EAST ST LOUIS 13EAST ST LOUIS 13

605

675

89.6%

6.7%

D+83.0

Precinct -BELLEVILLE 08BELLEVILLE 08

384

259

667

57.6%

38.8%

D+18.7

Precinct -ST CLAIR 16ST CLAIR 16

483

160

666

72.5%

24.0%

D+48.5

Precinct -CASEYVILLE 13CASEYVILLE 13

393

252

662

59.4%

38.1%

D+21.3

Precinct -CENTREVILLE 05CENTREVILLE 05

486

146

653

74.4%

22.4%

D+52.1

Precinct -EAST ST LOUIS 07EAST ST LOUIS 07

600

653

91.9%

4.9%

D+87.0

Precinct -BELLEVILLE 23BELLEVILLE 23

356

267

651

54.7%

41.0%

D+13.7

Precinct -BELLEVILLE 21BELLEVILLE 21

404

228

650

62.2%

35.1%

D+27.1

Precinct -MILLSTADT 4MILLSTADT 4

225

398

647

34.8%

61.5%

R+26.7

Precinct -BELLEVILLE 14BELLEVILLE 14

427

188

641

66.6%

29.3%

D+37.3

Precinct -EAST ST LOUIS 04EAST ST LOUIS 04

592

632

93.7%

3.8%

D+89.9

Precinct -ST CLAIR 21ST CLAIR 21

415

199

630

65.9%

31.6%

D+34.3

Precinct -EAST ST LOUIS 11EAST ST LOUIS 11

580

626

92.7%

5.4%

D+87.2

Precinct -STOOKEY 07STOOKEY 07

371

232

623

59.6%

37.2%

D+22.3

Precinct -CASEYVILLE 17CASEYVILLE 17

245

357

622

39.4%

57.4%

R+18.0

Precinct -BELLEVILLE 18BELLEVILLE 18

380

213

618

61.5%

34.5%

D+27.0

Precinct -NEW ATHENS 1NEW ATHENS 1

122

473

616

19.8%

76.8%

R+57.0

Precinct -PRAIRIE DU LONG 1PRAIRIE DU LONG 1

146

444

614

23.8%

72.3%

R+48.5

Precinct -CANTEEN 2CANTEEN 2

358

231

613

58.4%

37.7%

D+20.7

Precinct -SMITHTON 2SMITHTON 2

181

408

612

29.6%

66.7%

R+37.1

Precinct -STOOKEY 03STOOKEY 03

365

214

602

60.6%

35.5%

D+25.1

Precinct -EAST ST LOUIS 03EAST ST LOUIS 03

537

590

91.0%

5.6%

D+85.4

Precinct -ST CLAIR 20ST CLAIR 20

298

253

590

50.5%

42.9%

D+7.6

Precinct -CENTREVILLE 04CENTREVILLE 04

348

218

586

59.4%

37.2%

D+22.2

Precinct -SHILOH VALLEY 4SHILOH VALLEY 4

250

319

585

42.7%

54.5%

R+11.8

Precinct -STOOKEY 06STOOKEY 06

202

349

568

35.6%

61.4%

R+25.9

Precinct -SUGAR LOAF 5SUGAR LOAF 5

178

381

568

31.3%

67.1%

R+35.7

Precinct -CENTREVILLE 08CENTREVILLE 08

361

189

567

63.7%

33.3%

D+30.3

Precinct -ST CLAIR 13ST CLAIR 13

280

272

567

49.4%

48.0%

D+1.4

Precinct -ST CLAIR 09ST CLAIR 09

276

275

566

48.8%

48.6%

D+0.2

Precinct -ST CLAIR 19ST CLAIR 19

373

163

559

66.7%

29.2%

D+37.6

Precinct -CASEYVILLE 09CASEYVILLE 09

314

209

546

57.5%

38.3%

D+19.2

Precinct -CENTREVILLE 01CENTREVILLE 01

487

541

90.0%

6.7%

D+83.4

Precinct -ST CLAIR 05ST CLAIR 05

315

200

536

58.8%

37.3%

D+21.5

Precinct -EAST ST LOUIS 01EAST ST LOUIS 01

502

530

94.7%

3.0%

D+91.7

Precinct -ST CLAIR 02ST CLAIR 02

228

286

530

43.0%

54.0%

R+10.9

Precinct -CANTEEN 1CANTEEN 1

287

218

529

54.3%

41.2%

D+13.0

Precinct -LEBANON 2LEBANON 2

220

293

527

41.7%

55.6%

R+13.9

Precinct -STOOKEY 04STOOKEY 04

270

237

526

51.3%

45.1%

D+6.3

Precinct -CASEYVILLE 19CASEYVILLE 19

360

143

524

68.7%

27.3%

D+41.4

Precinct -CENTREVILLE 10CENTREVILLE 10

411

523

78.6%

17.6%

D+61.0

Precinct -FAYETTEVILLE 02FAYETTEVILLE 02

412

523

17.4%

78.8%

R+61.4

Precinct -ST CLAIR 11ST CLAIR 11

270

224

512

52.7%

43.8%

D+9.0

Precinct -EAST ST LOUIS 05EAST ST LOUIS 05

453

501

90.4%

6.8%

D+83.6

Precinct -BELLEVILLE 09BELLEVILLE 09

289

189

499

57.9%

37.9%

D+20.0

Precinct -CENTREVILLE 02CENTREVILLE 02

347

135

498

69.7%

27.1%

D+42.6

Precinct -BELLEVILLE 13BELLEVILLE 13

353

136

497

71.0%

27.4%

D+43.7

Precinct -EAST ST LOUIS 08EAST ST LOUIS 08

449

483

93.0%

5.2%

D+87.8

Precinct -MILLSTADT 3MILLSTADT 3

115

348

477

24.1%

73.0%

R+48.8

Precinct -BELLEVILLE 25BELLEVILLE 25

255

200

474

53.8%

42.2%

D+11.6

Precinct -EAST ST LOUIS 12EAST ST LOUIS 12

427

457

93.4%

5.7%

D+87.7

Precinct -EAST ST LOUIS 10EAST ST LOUIS 10

414

451

91.8%

5.3%

D+86.5

Precinct -ENGELMANNENGELMANN

350

451

20.8%

77.6%

R+56.8

Precinct -LENZBURGLENZBURG

351

445

18.7%

78.9%

R+60.2

Precinct -EAST ST LOUIS 06EAST ST LOUIS 06

398

423

94.1%

4.0%

D+90.1

Precinct -CANTEEN 3CANTEEN 3

386

422

91.5%

5.9%

D+85.5

Precinct -ST CLAIR 04ST CLAIR 04

174

224

411

42.3%

54.5%

R+12.2

Precinct -SUGAR LOAF 4SUGAR LOAF 4

277

365

22.2%

75.9%

R+53.7

Precinct -EAST ST LOUIS 02EAST ST LOUIS 02

341

364

93.7%

4.4%

D+89.3

Precinct -BELLEVILLE 06BELLEVILLE 06

220

122

354

62.1%

34.5%

D+27.7

Precinct -LEBANON 3LEBANON 3

256

341

23.2%

75.1%

R+51.9

Precinct -EAST ST LOUIS 09EAST ST LOUIS 09

309

332

93.1%

5.4%

D+87.7

Precinct -SUGAR LOAF 2SUGAR LOAF 2

219

325

29.8%

67.4%

R+37.5

Precinct -FAYETTEVILLE 01FAYETTEVILLE 01

251

321

19.0%

78.2%

R+59.2

Precinct -CASEYVILLE 16CASEYVILLE 16

139

166

320

43.4%

51.9%

R+8.4

Precinct -CASEYVILLE 20CASEYVILLE 20

136

146

295

46.1%

49.5%

R+3.4

Precinct -CANTEEN 4CANTEEN 4

200

228

87.7%

6.6%

D+81.1

Precinct -CANTEEN 5CANTEEN 5

138

228

36.8%

60.5%

R+23.7

Precinct -STITESSTITES

151

163

92.6%

4.9%

D+87.7

BELLEVILLE 1 Voting District17_171630201

—

Even

BELLEVILLE 10 Voting District17_171630210

—

Even

BELLEVILLE 11 Voting District17_171630211

—

Even

BELLEVILLE 12 Voting District17_171630212

—

Even

BELLEVILLE 13 Voting District17_171630213

—

Even

BELLEVILLE 14 Voting District17_171630214

—

Even

BELLEVILLE 15 Voting District17_171630215

—

Even

BELLEVILLE 16 Voting District17_171630216

—

Even

BELLEVILLE 17 Voting District17_171630217

—

Even

BELLEVILLE 18 Voting District17_171630218

—

Even

BELLEVILLE 19 Voting District17_171630219

—

Even

BELLEVILLE 2 Voting District17_171630202

—

Even

BELLEVILLE 20 Voting District17_171630220

—

Even

BELLEVILLE 21 Voting District17_171630221

—

Even

BELLEVILLE 22 Voting District17_171630222

—

Even

BELLEVILLE 23 Voting District17_171630223

—

Even

BELLEVILLE 24 Voting District17_171630224

—

Even

BELLEVILLE 25 Voting District17_171630225

—

Even

BELLEVILLE 26 Voting District17_171630226

—

Even

BELLEVILLE 27 Voting District17_171630227

—

Even

BELLEVILLE 28 Voting District17_171630228

—

Even

BELLEVILLE 29 Voting District17_171630229

—

Even

BELLEVILLE 3 Voting District17_171630203

—

Even

BELLEVILLE 30 Voting District17_171630230

—

Even

BELLEVILLE 31 Voting District17_171630231

—

Even

BELLEVILLE 32 Voting District17_171630232

—

Even

BELLEVILLE 33 Voting District17_171630233

—

Even

BELLEVILLE 4 Voting District17_171630204

—

Even

BELLEVILLE 5 Voting District17_171630205

—

Even

BELLEVILLE 6 Voting District17_171630206

—

Even

BELLEVILLE 7 Voting District17_171630207

—

Even

BELLEVILLE 8 Voting District17_171630208

—

Even

BELLEVILLE 9 Voting District17_171630209

—

Even

CANTEEN 1 Voting District17_171631101

—

Even

CANTEEN 10 Voting District17_171631110

—

Even

CANTEEN 11 Voting District17_171631111

—

Even

CANTEEN 12 Voting District17_171631112

—

Even

CANTEEN 13 Voting District17_171631113

—

Even

CANTEEN 14 Voting District17_171631114

—

Even

CANTEEN 2 Voting District17_171631102

—

Even

CANTEEN 3 Voting District17_171631103

—

Even

CANTEEN 4 Voting District17_171631104

—

Even

CANTEEN 5 Voting District17_171631105

—

Even

CANTEEN 6 Voting District17_171631106

—

Even

CANTEEN 7 Voting District17_171631107

—

Even

CANTEEN 8 Voting District17_171631108

—

Even

CANTEEN 9 Voting District17_171631109

—

Even

CASEYVILLE 1 Voting District17_171630801

—

Even

CASEYVILLE 10 Voting District17_171630810

—

Even

CASEYVILLE 13 Voting District17_171630813

—

Even

CASEYVILLE 14 Voting District17_171630814

—

Even

CASEYVILLE 15 Voting District17_171630815

—

Even

CASEYVILLE 16 Voting District17_171630816

—

Even

CASEYVILLE 17 Voting District17_171630817

—

Even

CASEYVILLE 18 Voting District17_171630818

—

Even

CASEYVILLE 19 Voting District17_171630819

—

Even

CASEYVILLE 2 Voting District17_171630802

—

Even

CASEYVILLE 20 Voting District17_171630820

—

Even

CASEYVILLE 21 Voting District17_171630821

—

Even

CASEYVILLE 22 Voting District17_171630822

—

Even

CASEYVILLE 23 Voting District17_171630823

—

Even

CASEYVILLE 24 Voting District17_171630824

—

Even

CASEYVILLE 25 Voting District17_171630825

—

Even

CASEYVILLE 3 Voting District17_171630803

—

Even

CASEYVILLE 4 Voting District17_171630804

—

Even

CASEYVILLE 5 Voting District17_171630805

—

Even

CASEYVILLE 6 Voting District17_171630806

—

Even

CASEYVILLE 7 Voting District17_171630807

—

Even

CASEYVILLE 8 Voting District17_171630808

—

Even

CASEYVILLE 9 Voting District17_171630809

—

Even

CENTREVILLE 1 Voting District17_171631001

—

Even

CENTREVILLE 10 Voting District17_171631010

—

Even

CENTREVILLE 11 Voting District17_171631011

—

Even

CENTREVILLE 12 Voting District17_171631012

—

Even

CENTREVILLE 13 Voting District17_171631013

—

Even

CENTREVILLE 14 Voting District17_171631014

—

Even

CENTREVILLE 15 Voting District17_171631015

—

Even

CENTREVILLE 16 Voting District17_171631016

—

Even

CENTREVILLE 17 Voting District17_171631017

—

Even

CENTREVILLE 18 Voting District17_171631018

—

Even

CENTREVILLE 19 Voting District17_171631019

—

Even

CENTREVILLE 2 Voting District17_171631002

—

Even

CENTREVILLE 20 Voting District17_171631020

—

Even

CENTREVILLE 21 Voting District17_171631021

—

Even

CENTREVILLE 22 Voting District17_171631022

—

Even

CENTREVILLE 23 Voting District17_171631023

—

Even

CENTREVILLE 24 Voting District17_171631024

—

Even

CENTREVILLE 25 Voting District17_171631025

—

Even

CENTREVILLE 26 Voting District17_171631026

—

Even

CENTREVILLE 27 Voting District17_171631027

—

Even

CENTREVILLE 3 Voting District17_171631003

—

Even

CENTREVILLE 4 Voting District17_171631004

—

Even

CENTREVILLE 5 Voting District17_171631005

—

Even

CENTREVILLE 6 Voting District17_171631006

—

Even

CENTREVILLE 7 Voting District17_171631007

—

Even

CENTREVILLE 8 Voting District17_171631008

—

Even

CENTREVILLE 9 Voting District17_171631009

—

Even

EAST ST. LOUIS 1 Voting District17_17163ES01

—

Even

EAST ST. LOUIS 10 Voting District17_17163ES10

—

Even

EAST ST. LOUIS 11 Voting District17_17163ES11

—

Even

EAST ST. LOUIS 12 Voting District17_17163ES12

—

Even

EAST ST. LOUIS 13 Voting District17_17163ES13

—

Even

EAST ST. LOUIS 14 Voting District17_17163ES14

—

Even

EAST ST. LOUIS 15 Voting District17_17163ES15

—

Even

EAST ST. LOUIS 16 Voting District17_17163ES16

—

Even

EAST ST. LOUIS 17 Voting District17_17163ES17

—

Even

EAST ST. LOUIS 18 Voting District17_17163ES18

—

Even

EAST ST. LOUIS 19 Voting District17_17163ES19

—

Even

EAST ST. LOUIS 2 Voting District17_17163ES02

—

Even

EAST ST. LOUIS 20 Voting District17_17163ES20

—

Even

EAST ST. LOUIS 21 Voting District17_17163ES21

—

Even

EAST ST. LOUIS 22 Voting District17_17163ES22

—

Even

EAST ST. LOUIS 23 Voting District17_17163ES23

—

Even

EAST ST. LOUIS 24 Voting District17_17163ES24

—

Even

EAST ST. LOUIS 25 Voting District17_17163ES25

—

Even

EAST ST. LOUIS 26 Voting District17_17163ES26

—

Even

EAST ST. LOUIS 27 Voting District17_17163ES27

—

Even

EAST ST. LOUIS 28 Voting District17_17163ES28

—

Even

EAST ST. LOUIS 29 Voting District17_17163ES29

—

Even

EAST ST. LOUIS 3 Voting District17_17163ES03

—

Even

EAST ST. LOUIS 30 Voting District17_17163ES30

—

Even

EAST ST. LOUIS 31 Voting District17_17163ES31

—

Even

EAST ST. LOUIS 32 Voting District17_17163ES32

—

Even

EAST ST. LOUIS 33 Voting District17_17163ES33

—

Even

EAST ST. LOUIS 34 Voting District17_17163ES34

—

Even

EAST ST. LOUIS 35 Voting District17_17163ES35

—

Even

EAST ST. LOUIS 36 Voting District17_17163ES36

—

Even

EAST ST. LOUIS 37 Voting District17_17163ES37

—

Even

EAST ST. LOUIS 38 Voting District17_17163ES38

—

Even

EAST ST. LOUIS 39 Voting District17_17163ES39

—

Even

EAST ST. LOUIS 4 Voting District17_17163ES04

—

Even

EAST ST. LOUIS 40 Voting District17_17163ES40

—

Even

EAST ST. LOUIS 41 Voting District17_17163ES41

—

Even

EAST ST. LOUIS 42 Voting District17_17163ES42

—

Even

EAST ST. LOUIS 43 Voting District17_17163ES43

—

Even

EAST ST. LOUIS 44 Voting District17_17163ES44

—

Even

EAST ST. LOUIS 5 Voting District17_17163ES05

—

Even

EAST ST. LOUIS 6 Voting District17_17163ES06

—

Even

EAST ST. LOUIS 7 Voting District17_17163ES07

—

Even

EAST ST. LOUIS 8 Voting District17_17163ES08

—

Even

EAST ST. LOUIS 9 Voting District17_17163ES09

—

Even

ENGELMANN Voting District17_171631401

—

Even

FAYETTEVILLE 1 Voting District17_171631501

—

Even

FAYETTEVILLE 2 Voting District17_171631502

—

Even

FREEBURG 1 Voting District17_171631701

—

Even

FREEBURG 2 Voting District17_171631702

—

Even

FREEBURG 3 Voting District17_171631703

—

Even

FREEBURG 4 Voting District17_171631704

—

Even

LEBANON 1 Voting District17_171630401

—

Even

LEBANON 2 Voting District17_171630402

—

Even

LEBANON 3 Voting District17_171630403

—

Even

LENZBURG Voting District17_171631901

—

Even

MARISSA 1 Voting District17_171631601

—

Even

MARISSA 2 Voting District17_171631602

—

Even

MARISSA 3 Voting District17_171631603

—

Even

MASCOUTAH 1 Voting District17_171630301

—

Even

MASCOUTAH 2 Voting District17_171630302

—

Even

MASCOUTAH 3 Voting District17_171630303

—

Even

MASCOUTAH 4 Voting District17_171630304

—

Even

MILLSTADT 1 Voting District17_171632201

—

Even

MILLSTADT 2 Voting District17_171632202

—

Even

MILLSTADT 3 Voting District17_171632203

—

Even

MILLSTADT 4 Voting District17_171632204

—

Even

NEW ATHENS 1 Voting District17_171631801

—

Even

NEW ATHENS 2 Voting District17_171631802

—

Even

O'FALLON 1 Voting District17_171630601

—

Even

O'FALLON 10 Voting District17_171630610

—

Even

O'FALLON 2 Voting District17_171630602

—

Even

O'FALLON 3 Voting District17_171630603

—

Even

O'FALLON 4 Voting District17_171630604

—

Even

O'FALLON 5 Voting District17_171630605

—

Even

O'FALLON 6 Voting District17_171630606

—

Even

O'FALLON 7 Voting District17_171630607

—

Even

O'FALLON 8 Voting District17_171630608

—

Even

O'FALLON 9 Voting District17_171630609

—

Even

PRAIRIE DU LONG Voting District17_171632001

—

Even

Precinct -O'FALLON 01O'FALLON 01

—

Even

Precinct -O'FALLON 02O'FALLON 02

—

Even

Precinct -O'FALLON 03O'FALLON 03

—

Even

Precinct -O'FALLON 04O'FALLON 04

—

Even

Precinct -O'FALLON 05O'FALLON 05

—

Even

Precinct -O'FALLON 06O'FALLON 06

—

Even

Precinct -O'FALLON 07O'FALLON 07

—

Even

Precinct -O'FALLON 08O'FALLON 08

—

Even

Precinct -O'FALLON 09O'FALLON 09

—

Even

Precinct -O'FALLON 10O'FALLON 10

—

Even

Precinct -O'FALLON 11O'FALLON 11

—

Even

Precinct -O'FALLON 12O'FALLON 12

—

Even

Precinct -O'FALLON 13O'FALLON 13

—

Even

Precinct -O'FALLON 14O'FALLON 14

—

Even

Precinct -O'FALLON 15O'FALLON 15

—

Even

Precinct -O'FALLON 16O'FALLON 16

—

Even

Precinct -O'FALLON 17O'FALLON 17

—

Even

Precinct -O'FALLON 18O'FALLON 18

—

Even

SHILOH VALLEY 1 Voting District17_171630501

—

Even

SHILOH VALLEY 2 Voting District17_171630502

—

Even

SHILOH VALLEY 3 Voting District17_171630503

—

Even

SHILOH VALLEY 4 Voting District17_171630504

—

Even

SMITHTON 1 Voting District17_171632101

—

Even

SMITHTON 2 Voting District17_171632102

—

Even

SMITHTON 3 Voting District17_171632103

—

Even

SMITHTON 4 Voting District17_171632104

—

Even

ST CLAIR 1 Voting District17_171630701

—

Even

ST CLAIR 10 Voting District17_171630710

—

Even

ST CLAIR 11 Voting District17_171630711

—

Even

ST CLAIR 12 Voting District17_171630712

—

Even

ST CLAIR 13 Voting District17_171630713

—

Even

ST CLAIR 14 Voting District17_171630714

—

Even

ST CLAIR 15 Voting District17_171630715

—

Even

ST CLAIR 16 Voting District17_171630716

—

Even

ST CLAIR 17 Voting District17_171630717

—

Even

ST CLAIR 18 Voting District17_171630718

—

Even

ST CLAIR 19 Voting District17_171630719

—

Even

ST CLAIR 2 Voting District17_171630702

—

Even

ST CLAIR 20 Voting District17_171630720

—

Even

ST CLAIR 21 Voting District17_171630721

—

Even

ST CLAIR 22 Voting District17_171630722

—

Even

ST CLAIR 3 Voting District17_171630703

—

Even

ST CLAIR 4 Voting District17_171630704

—

Even

ST CLAIR 5 Voting District17_171630705

—

Even

ST CLAIR 6 Voting District17_171630706

—

Even

ST CLAIR 7 Voting District17_171630707

—

Even

ST CLAIR 8 Voting District17_171630708

—

Even

ST CLAIR 9 Voting District17_171630709

—

Even

STITES 1 Voting District17_171631301

—

Even

STOOKEY 1 Voting District17_171630901

—

Even

STOOKEY 10 Voting District17_171630910

—

Even

STOOKEY 2 Voting District17_171630902

—

Even

STOOKEY 3 Voting District17_171630903

—

Even

STOOKEY 4 Voting District17_171630904

—

Even

STOOKEY 5 Voting District17_171630905

—

Even

STOOKEY 6 Voting District17_171630906

—

Even

STOOKEY 7 Voting District17_171630907

—

Even

STOOKEY 8 Voting District17_171630908

—

Even

STOOKEY 9 Voting District17_171630909

—

Even

SUGAR LOAF 1 Voting District17_171631201

—

Even

SUGAR LOAF 2 Voting District17_171631202

—

Even

SUGAR LOAF 3 Voting District17_171631203

—

Even

SUGAR LOAF 4 Voting District17_171631204

—

Even

SUGAR LOAF 5 Voting District17_171631205

—

Even

SUGAR LOAF 6 Voting District17_171631206

—

Even

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	+6.6%
1896	−3.5%
1900	+0.3%
1904	−17.3%
1908	−4.9%
1912	+10.3%
1916	+1.1%
1920	−18.1%
1924	−16.6%
1928	+7.9%
1932	+33.8%
1936	+32.9%
1940	+19.5%
1944	+18.0%
1948	+27.3%
1952	+20.5%
1956	+14.2%
1960	+23.1%
1964	+44.8%
1968	+16.1%
1972	−4.0%
1976	+18.6%
1980	+4.0%
1984	+1.2%
1988	+14.4%
1992	+23.9%
1996	+21.5%
2000	+13.6%
2004	+10.8%
2008	+22.4%
2012	+14.3%
2016	+5.7%
2020	+8.6%
2024	+7.8%

DemocraticRepublican

Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.

Year

Won

Democratic

Republican

Other

Margin

Swing

vs U.S.

Total

2024

52.9%Harris63,433

45.0%Trump54,021

1.8%Kennedy2,201

D+7.8

R+0.8

D+9.3

119,962

2020

52.8%Biden68,325

44.2%Trump57,150

1.2%Jorgensen1,615

D+8.6

D+3.0

D+4.2

129,405

2016

50.0%Clinton60,756

44.4%Trump53,857

3.4%Johnson4,181

D+5.7

R+8.6

D+3.6

121,436

2012

56.2%Obama67,285

41.8%Romney50,125

1.2%JOHNSON1,383

D+14.3

R+8.1

D+10.5

119,827

2008

60.6%Obama76,160

38.1%McCain47,958

1.3%

D+22.4

D+11.6

D+15.2

125,744

2004

55.1%Kerry62,410

44.4%Bush50,203

0.5%

D+10.8

R+2.8

D+13.2

113,189

2000

55.7%Gore55,961

42.1%Bush42,299

1.6%Nader1,569

D+13.6

R+7.9

D+13.1

100,393

1996

56.6%Clinton53,405

35.0%Dole33,066

7.4%Perot7,027

D+21.5

R+2.3

D+13.0

94,429

1992

53.6%Clinton57,625

29.7%Bush31,951

16.4%Perot17,592

D+23.9

D+9.5

D+18.3

107,541

1988

57.0%Dukakis55,465

42.6%Bush41,439

0.4%

D+14.4

D+13.2

D+22.1

97,313

1984

50.2%Mondale52,294

49.0%Reagan51,046

0.8%

D+1.2

R+2.8

D+19.4

104,148

1980

49.7%Carter50,046

45.8%Reagan46,063

4.5%

D+4.0

R+14.7

D+13.7

100,673

1976

58.6%Carter59,177

39.9%Ford40,333

1.5%

D+18.6

D+22.6

D+16.6

101,065

1972

47.5%McGovern46,636

51.5%Nixon50,519

1.0%

R+4.0

R+20.1

D+19.2

98,097

1968

50.3%Humphrey50,726

34.1%Nixon34,442

15.6%

D+16.1

R+28.6

D+16.8

100,874

1964

72.4%Johnson74,005

27.6%Goldwater28,226

0.0%

D+44.8

D+21.7

D+22.2

102,231

1960

61.4%Kennedy67,367

38.3%Nixon42,046

0.3%

D+23.1

D+8.9

D+22.9

109,751

1956

56.9%Stevenson55,295

42.8%Eisenhower41,528

0.3%

D+14.2

R+6.3

D+29.6

97,106

1952

60.0%Stevenson60,311

39.5%Eisenhower39,713

0.5%

D+20.5

R+6.8

D+31.3

100,503

1948

63.4%Truman54,260

36.1%Dewey30,883

0.6%

D+27.3

D+9.3

D+22.8

85,617

1944

58.8%Roosevelt48,325

40.8%Dewey33,557

0.4%

D+18.0

R+1.5

D+10.5

82,209

1940

59.5%Roosevelt53,482

40.0%Willkie35,998

0.5%

D+19.5

R+13.4

D+9.5

89,891

1936

64.8%Roosevelt54,238

31.9%Landon26,684

3.4%

D+32.9

R+0.9

D+8.6

83,762

1932

65.2%Roosevelt47,305

31.3%Hoover22,744

3.5%

D+33.8

D+26.0

D+16.1

72,571

1928

53.5%Smith36,374

45.6%Hoover31,026

0.9%

D+7.9

D+24.4

D+25.3

68,037

1924

29.3%Davis14,921

45.8%Coolidge23,380

24.4%La Follette12,468

R+16.6

D+1.5

D+8.6

50,994

1920

33.2%Cox14,032

51.3%Harding21,681

15.4%

R+18.1

R+19.2

D+8.1

42,231

1916

48.8%Wilson22,622

47.8%Hughes22,134

3.4%

D+1.1

R+9.3

R+2.1

46,331

1912

41.9%Wilson10,826

31.5%Taft8,156

26.6%

D+10.3

D+15.2

R+9.2

25,866

1908

43.7%Bryan11,342

48.7%Taft12,619

7.6%

R+4.9

D+12.4

D+4.6

25,934

1904

38.0%Parker8,200

55.3%Roosevelt11,926

6.7%

R+17.3

R+17.6

D+2.4

21,561

1900

49.0%Bryan9,827

48.7%McKinley9,764

2.4%

D+0.3

D+3.8

D+7.9

20,063

1896

47.5%Bryan8,345

51.0%McKinley8,960

1.6%

R+3.5

R+10.1

D+2.6

17,583

1892

51.4%Cleveland7,207

44.7%Harrison6,276

3.9%

D+6.6

—

D+5.0

14,034

1888

—

No data

—

1884

—

No data

—

1880

—

No data

—

1876

—

No data

—

Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.

Year

Won

Democratic

Republican

Total

2022

53.8%47,634

44.4%39,335

88,602

2020

52.6%66,801

44.0%55,898

126,941

Frequently asked questions

Voter registration in St. Clair County, IL
Year	Total registered
2016	182,814
2018	180,207
2020	4,030
2022	183,411
2024	188,339

How did St. Clair County, Illinois vote in 2024?

In 2024, St. Clair County, Illinois voted Democratic by 7.8 points (D+7.8), carried by the Democratic candidate. Out of 119,962 votes cast, 63,433 went Democratic and 54,021 went Republican.

When did St. Clair County, Illinois last vote Republican?

The most recent presidential election in which St. Clair County, Illinois voted Republican was 1972.

How many people live in St. Clair County, Illinois?

St. Clair County, Illinois has a population of 253,694 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in St. Clair County, Illinois?

Median household income in St. Clair County, Illinois is $73,854 — below the national median of $80,734. The Illinois state median is $83,390.

What is the political history of St. Clair County, Illinois?

Akashic tracks 38 presidential elections in St. Clair County, Illinois from 1876 to 2024. Of those, 28 went Democratic and 6 went Republican.

presidential margin

presidential returns

Who lives here

Communities and origins

Age and life stage

Household economy

Languages at home

Religious landscape

Results by precinct

Presidential margin, 1892–2024

U.S. Senate

Registered voters

Who moves in and out

Where arrivals came from lean of each source

Where departures went households, 2022–23

Compare two places, side by side

Frequently asked questions

presidential margin

presidential returns

Who lives here

Communities and origins

Age and life stage

Household economy

Languages at home

Religious landscape

Results by precinct

Presidential margin, 1892–2024

U.S. Senate

Registered voters

Who moves in and out

Where arrivals came from lean of each source

Where departures went households, 2022–23

Compare two places, side by side

Frequently asked questions