Seneca County, Ohio

Year	Democrat	Republican	Others	Total
2024	7,765	17,241	257	25,263
2020	8,266	17,086	458	25,810
2016	7,404	14,825	2,339	24,568
2012	11,353	13,243	1,013	25,609
2008	13,087	13,823	643	27,553
2004	10,957	15,886	148	26,991

Year

Democrat

Republican

Others

Total

2024

7,765

17,241

257

25,263

2020

8,266

17,086

458

25,810

2016

7,404

14,825

2,339

24,568

2012

11,353

13,243

1,013

25,609

2008

13,087

13,823

643

27,553

2004

10,957

15,886

148

26,991

Measure	Seneca County	Ohio	United States
Median age	40.2	39.8	39.1
Age 18–24	10.8%	8.9%	9.2%
Age 65 and older	19.3%	18.3%	17.2%

Measure

Seneca County

Ohio

United States

Median age

40.2

39.8

39.1

Age 18–24

10.8%

8.9%

9.2%

Age 65 and older

19.3%

18.3%

17.2%

Measure	Seneca County	Ohio	United States
Median household income	$66,025	$71,389	$84,427
Poverty rate	11.9%	13.3%	12.5%
Bachelor's degree or higher (25+)	20.6%	31.6%	35.6%

Measure

Seneca County

Ohio

United States

Median household income

$66,025

$71,389

$84,427

Poverty rate

11.9%

13.3%

12.5%

Bachelor's degree or higher (25+)

20.6%

31.6%

35.6%

Measure	Seneca County	Ohio	United States
Speaks a non-English language at home	2.6%	8.0%	22.3%
Spanish	1.6%	2.7%	13.6%

Measure

Seneca County

Ohio

United States

Speaks a non-English language at home

2.6%

8.0%

22.3%

Spanish

1.6%

2.7%

13.6%

Measure	Seneca County	Ohio	United States
Catholic	27.2%	15.4%	18.6%
Evangelical Protestant	3.9%	19.5%	16.5%
Unclaimed / not counted	55.2%	52.2%	51.5%
Mainline Protestant	11.0%	7.0%	5.2%

Measure

Seneca County

Ohio

United States

Catholic

27.2%

15.4%

18.6%

Evangelical Protestant

3.9%

19.5%

16.5%

Unclaimed / not counted

55.2%

52.2%

51.5%

Mainline Protestant

11.0%

7.0%

5.2%

Precinct data

Results by precinct

102 precincts · 25,262 votes

Election

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

Seneca County precinct-level presidential election results for 2024

Precinct -PRECINCT TIFFIN 4-BPRECINCT TIFFIN 4-B	369	528	9	906	40.7%	58.3%	R+17.5
Precinct -PRECINCT PLEASANT TOWNSHIPPRECINCT PLEASANT TOWNSHIP	199	636	9	844	23.6%	75.4%	R+51.8
Precinct -PRECINCT BIG SPRING TOWNSHIPPRECINCT BIG SPRING TOWNSHIP	159	633	2	794	20.0%	79.7%	R+59.7
Precinct -PRECINCT TIFFIN 2-CPRECINCT TIFFIN 2-C	322	431	7	760	42.4%	56.7%	R+14.3
Precinct -PRECINCT JACKSON TOWNSHIPPRECINCT JACKSON TOWNSHIP	189	539	7	735	25.7%	73.3%	R+47.6
Precinct -PRECINCT LOUDON NORTHPRECINCT LOUDON NORTH	182	548	4	734	24.8%	74.7%	R+49.9
Precinct -PRECINCT CLINTON CPRECINCT CLINTON C	230	481	4	715	32.2%	67.3%	R+35.1
Precinct -PRECINCT EDEN NORTHPRECINCT EDEN NORTH	187	504	5	696	26.9%	72.4%	R+45.5
Precinct -PRECINCT ADAMS TOWNSHIPPRECINCT ADAMS TOWNSHIP	134	555	5	694	19.3%	80.0%	R+60.7
Precinct -PRECINCT THOMPSON TOWNSHIPPRECINCT THOMPSON TOWNSHIP	154	502	8	664	23.2%	75.6%	R+52.4
Precinct -PRECINCT SCIPIO TOWNSHIPPRECINCT SCIPIO TOWNSHIP	122	503	6	631	19.3%	79.7%	R+60.4
Precinct -PRECINCT FOSTORIA 1-APRECINCT FOSTORIA 1-A	279	339	7	625	44.6%	54.2%	R+9.6
Precinct -PRECINCT TIFFIN 4-APRECINCT TIFFIN 4-A	245	373	5	623	39.3%	59.9%	R+20.5
Precinct -PRECINCT TIFFIN 2-APRECINCT TIFFIN 2-A	250	352	7	609	41.1%	57.8%	R+16.7
Precinct -PRECINCT TIFFIN 1-BPRECINCT TIFFIN 1-B	255	342	11	608	41.9%	56.3%	R+14.3
Precinct -PRECINCT TIFFIN 4-CPRECINCT TIFFIN 4-C	202	355	7	564	35.8%	62.9%	R+27.1
Precinct -PRECINCT HOPEWELL APRECINCT HOPEWELL A	123	424	7	554	22.2%	76.5%	R+54.3
Precinct -PRECINCT TIFFIN 1-CPRECINCT TIFFIN 1-C	203	313	7	523	38.8%	59.8%	R+21.0
Precinct -PRECINCT HOPEWELL BPRECINCT HOPEWELL B	117	391	6	514	22.8%	76.1%	R+53.3
Precinct -PRECINCT FOSTORIA 4-APRECINCT FOSTORIA 4-A	181	309	9	499	36.3%	61.9%	R+25.7
Precinct -PRECINCT SENECA APRECINCT SENECA A	120	374	5	499	24.0%	74.9%	R+50.9
Precinct -PRECINCT CLINTON DPRECINCT CLINTON D	138	347	1	486	28.4%	71.4%	R+43.0
Precinct -PRECINCT FOSTORIA 1-BPRECINCT FOSTORIA 1-B	214	264	6	484	44.2%	54.5%	R+10.3
Precinct -PRECINCT TIFFIN 3-BPRECINCT TIFFIN 3-B	175	302	6	483	36.2%	62.5%	R+26.3
Precinct -PRECINCT VENICE TOWNSHIPPRECINCT VENICE TOWNSHIP	86	377	2	465	18.5%	81.1%	R+62.6
Precinct -PRECINCT ATTICA VILLAGEPRECINCT ATTICA VILLAGE	99	350	2	451	22.0%	77.6%	R+55.7
Precinct -PRECINCT TIFFIN 3-CPRECINCT TIFFIN 3-C	191	252	2	445	42.9%	56.6%	R+13.7
Precinct -PRECINCT FOSTORIA 4-BPRECINCT FOSTORIA 4-B	206	227	10	443	46.5%	51.2%	R+4.7
Precinct -PRECINCT BLOOM TOWNSHIPPRECINCT BLOOM TOWNSHIP	100	337	3	440	22.7%	76.6%	R+53.9
Precinct -PRECINCT FOSTORIA 3-APRECINCT FOSTORIA 3-A	195	241	4	440	44.3%	54.8%	R+10.5
Precinct -PRECINCT EDEN SOUTHPRECINCT EDEN SOUTH	107	316	3	426	25.1%	74.2%	R+49.1
Precinct -PRECINCT CLINTON APRECINCT CLINTON A	121	298	5	424	28.5%	70.3%	R+41.7
Precinct -PRECINCT CLINTON BPRECINCT CLINTON B	132	286	4	422	31.3%	67.8%	R+36.5
Precinct -PRECINCT LIBERTY APRECINCT LIBERTY A	82	325	3	410	20.0%	79.3%	R+59.3
Precinct -PRECINCT FOSTORIA 3-BPRECINCT FOSTORIA 3-B	191	211	6	408	46.8%	51.7%	R+4.9
Precinct -PRECINCT REED TOWNSHIPPRECINCT REED TOWNSHIP	102	305	1	408	25.0%	74.8%	R+49.8
Precinct -PRECINCT TIFFIN 3-DPRECINCT TIFFIN 3-D	143	256	8	407	35.1%	62.9%	R+27.8
Precinct -PRECINCT TIFFIN 4-DPRECINCT TIFFIN 4-D	155	231	9	395	39.2%	58.5%	R+19.2
Precinct -PRECINCT HOPEWELL CPRECINCT HOPEWELL C	106	278	3	387	27.4%	71.8%	R+44.4
Precinct -PRECINCT LOUDON SOUTHPRECINCT LOUDON SOUTH	76	280	5	361	21.1%	77.6%	R+56.5
Precinct -PRECINCT TIFFIN 3-APRECINCT TIFFIN 3-A	133	222	5	360	36.9%	61.7%	R+24.7
Precinct -PRECINCT SENECA BPRECINCT SENECA B	53	293	2	348	15.2%	84.2%	R+69.0
Precinct -PRECINCT LIBERTY BPRECINCT LIBERTY B	83	261	3	347	23.9%	75.2%	R+51.3
Precinct -PRECINCT BLOOMVILLE VILLAGEPRECINCT BLOOMVILLE VILLAGE	79	257	2	338	23.4%	76.0%	R+52.7
Precinct -PRECINCT CLINTON EPRECINCT CLINTON E	101	233	4	338	29.9%	68.9%	R+39.1
Precinct -PRECINCT TIFFIN 1-APRECINCT TIFFIN 1-A	127	165	8	300	42.3%	55.0%	R+12.7
Precinct -PRECINCT TIFFIN 2-BPRECINCT TIFFIN 2-B	114	181	5	300	38.0%	60.3%	R+22.3
Precinct -PRECINCT GREEN SPRINGS VILLAGEPRECINCT GREEN SPRINGS VILLAGE	65	218	1	284	22.9%	76.8%	R+53.9
Precinct -PRECINCT BETTSVILLE VILLAGEPRECINCT BETTSVILLE VILLAGE	77	194	3	274	28.1%	70.8%	R+42.7
Precinct -PRECINCT REPUBLIC VILLPRECINCT REPUBLIC VILL	60	205	3	268	22.4%	76.5%	R+54.1
Precinct -PRECINCT NEW RIEGEL VILLAGEPRECINCT NEW RIEGEL VILLAGE	32	97	0	129	24.8%	75.2%	R+50.4
PRECINCT ADAMS TOWNSHIP39_39147147ABJ	0	0	0	0	—	—	Even
PRECINCT ATTICA VILLAGE39_39147147ACT	0	0	0	0	—	—	Even
PRECINCT BETTSVILLE VILLAGE39_39147147ACD	0	0	0	0	—	—	Even
PRECINCT BIG SPRING TOWNSHIP39_39147147ABM	0	0	0	0	—	—	Even
PRECINCT BLOOM TOWNSHIP39_39147147ABO	0	0	0	0	—	—	Even
PRECINCT BLOOMVILLE VILLAGE39_39147147ABP	0	0	0	0	—	—	Even
PRECINCT CLINTON A39_39147147ABQ	0	0	0	0	—	—	Even
PRECINCT CLINTON B39_39147147ABR	0	0	0	0	—	—	Even
PRECINCT CLINTON C39_39147147ABS	0	0	0	0	—	—	Even
PRECINCT CLINTON D39_39147147ABT	0	0	0	0	—	—	Even
PRECINCT CLINTON E39_39147147ABU	0	0	0	0	—	—	Even
PRECINCT EDEN NORTH39_39147147ABV	0	0	0	0	—	—	Even
PRECINCT EDEN SOUTH39_39147147ABX	0	0	0	0	—	—	Even
PRECINCT FOSTORIA 1-A39_39147147AAA	0	0	0	0	—	—	Even
PRECINCT FOSTORIA 1-B39_39147147AAC	0	0	0	0	—	—	Even
PRECINCT FOSTORIA 3-A39_39147147AAE	0	0	0	0	—	—	Even
PRECINCT FOSTORIA 3-B39_39147147AAF	0	0	0	0	—	—	Even
PRECINCT FOSTORIA 4-A39_39147147AAI	0	0	0	0	—	—	Even
PRECINCT FOSTORIA 4-B39_39147147AAL	0	0	0	0	—	—	Even
PRECINCT GREEN SPRINGS VILLAGE39_39147147ABI	0	0	0	0	—	—	Even
PRECINCT HOPEWELL A39_39147147ABY	0	0	0	0	—	—	Even
PRECINCT HOPEWELL B39_39147147ABZ	0	0	0	0	—	—	Even
PRECINCT HOPEWELL C39_39147147ACA	0	0	0	0	—	—	Even
PRECINCT JACKSON TOWNSHIP39_39147147ACB	0	0	0	0	—	—	Even
PRECINCT LIBERTY A39_39147147ACE	0	0	0	0	—	—	Even
PRECINCT LIBERTY B39_39147147ACF	0	0	0	0	—	—	Even
PRECINCT LOUDON NORTH39_39147147ACG	0	0	0	0	—	—	Even
PRECINCT LOUDON SOUTH39_39147147ACH	0	0	0	0	—	—	Even
PRECINCT NEW RIEGEL VILLAGE39_39147147ABL	0	0	0	0	—	—	Even
PRECINCT PLEASANT TOWNSHIP39_39147147ACJ	0	0	0	0	—	—	Even
PRECINCT REED TOWNSHIP39_39147147ACL	0	0	0	0	—	—	Even
PRECINCT REPUBLIC VILL39_39147147ACN	0	0	0	0	—	—	Even
PRECINCT SCIPIO TOWNSHIP39_39147147ACM	0	0	0	0	—	—	Even
PRECINCT SENECA A39_39147147ACP	0	0	0	0	—	—	Even
PRECINCT SENECA B39_39147147ACQ	0	0	0	0	—	—	Even
PRECINCT THOMPSON TOWNSHIP39_39147147ACR	0	0	0	0	—	—	Even
PRECINCT TIFFIN 1-A39_39147147AAM	0	0	0	0	—	—	Even
PRECINCT TIFFIN 1-B39_39147147AAN	0	0	0	0	—	—	Even
PRECINCT TIFFIN 1-C39_39147147AAO	0	0	0	0	—	—	Even
PRECINCT TIFFIN 2-A39_39147147AAR	0	0	0	0	—	—	Even
PRECINCT TIFFIN 2-B39_39147147AAS	0	0	0	0	—	—	Even
PRECINCT TIFFIN 2-C39_39147147AAT	0	0	0	0	—	—	Even
PRECINCT TIFFIN 3-A39_39147147AAW	0	0	0	0	—	—	Even
PRECINCT TIFFIN 3-B39_39147147AAX	0	0	0	0	—	—	Even
PRECINCT TIFFIN 3-C39_39147147AAY	0	0	0	0	—	—	Even
PRECINCT TIFFIN 3-D39_39147147AAZ	0	0	0	0	—	—	Even
PRECINCT TIFFIN 4-A39_39147147ABB	0	0	0	0	—	—	Even
PRECINCT TIFFIN 4-B39_39147147ABC	0	0	0	0	—	—	Even
PRECINCT TIFFIN 4-C39_39147147ABE	0	0	0	0	—	—	Even
PRECINCT TIFFIN 4-D39_39147147ABG	0	0	0	0	—	—	Even
PRECINCT VENICE TOWNSHIP39_39147147ACU	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	+11.7%
1896	+11.9%
1900	+9.4%
1904	−5.1%
1908	+10.2%
1912	+26.6%
1916	+19.3%
1920	−10.2%
1924	−18.5%
1928	−24.2%
1932	+13.6%
1936	−4.4%
1940	−37.1%
1944	−41.7%
1948	−18.1%
1952	−43.1%
1956	−47.8%
1960	−22.4%
1964	+20.7%
1968	−13.3%
1972	−25.1%
1976	−7.4%
1980	−29.5%
1984	−35.0%
1988	−17.9%
1992	−1.8%
1996	+1.4%
2000	−17.9%
2004	−18.3%
2008	−2.7%
2012	−7.4%
2016	−30.2%
2020	−34.2%
2024	−37.5%

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	R	30.7%Harris7,765	68.2%Trump17,241	0.5%Oliver129 +3	R+37.5	R+3.3	R+36.0	25,263
All 6 candidates in 2024 · 4 minor / independent Donald J TrumpRepublican68.2%17,241 Kamala D HarrisDemocratic30.7%7,765 Chase OliverNonpartisan0.5%129 Richard DuncanNonpartisan0.3%66 Peter SonskiNonpartisan0.2%61 OtherAll other candidates0.0%1
2020	R	32.0%Biden8,266	66.2%Trump17,086	1.4%Jorgensen357	R+34.2	R+4.0	R+38.6	25,810
2016	R	30.1%Clinton7,404	60.3%Trump14,825	5.3%Johnson1,302	R+30.2	R+22.8	R+32.3	24,568
2012	R	44.3%Obama11,353	51.7%Romney13,243	1.2%Johnson316	R+7.4	R+4.7	R+11.2	25,609
2008	R	47.5%Obama13,087	50.2%McCain13,823	2.3%	R+2.7	D+15.6	R+9.9	27,553
2004	R	40.6%Kerry10,957	58.9%Bush15,886	0.5%	R+18.3	R+0.4	R+15.8	26,991
2000	R	39.1%Gore9,512	56.9%Bush13,863	2.7%Nader666	R+17.9	R+19.3	R+18.4	24,351
1996	D	42.7%Clinton10,044	41.3%Dole9,713	14.9%Perot3,498	D+1.4	D+3.3	R+7.1	23,511
1992	R	35.5%Clinton9,280	37.3%Bush9,763	26.6%Perot6,967	R+1.8	D+16.1	R+7.4	26,150
1988	R	40.6%Dukakis9,504	58.5%Bush13,704	0.9%	R+17.9	D+17.0	R+10.2	23,430
1984	R	32.1%Mondale7,905	67.0%Reagan16,520	0.9%	R+35.0	R+5.4	R+16.7	24,642
1980	R	31.4%Carter7,303	60.9%Reagan14,172	7.7%	R+29.5	R+22.2	R+19.8	23,259
1976	R	44.7%Carter10,074	52.1%Ford11,730	3.2%	R+7.4	D+17.8	R+9.4	22,516
1972	R	35.7%McGovern8,180	60.8%Nixon13,939	3.5%	R+25.1	R+11.8	R+2.0	22,918
1968	R	39.0%Humphrey8,970	52.3%Nixon12,040	8.7%	R+13.3	R+34.0	R+12.6	23,020
1964	D	60.4%Johnson14,518	39.6%Goldwater9,536	0.0%	D+20.7	D+43.1	R+1.9	24,054
1960	R	38.8%Kennedy10,001	61.2%Nixon15,772	0.0%	R+22.4	D+25.4	R+22.6	25,773
1956	R	26.1%Stevenson6,260	73.9%Eisenhower17,728	0.0%	R+47.8	R+4.7	R+32.4	23,988
1952	R	28.5%Stevenson7,060	71.5%Eisenhower17,750	0.0%	R+43.1	R+25.0	R+32.3	24,810
1948	R	40.7%Truman7,954	58.9%Dewey11,493	0.4%	R+18.1	D+23.6	R+22.6	19,524
1944	R	29.1%Roosevelt6,224	70.9%Dewey15,137	0.0%	R+41.7	R+4.6	R+49.2	21,361
1940	R	31.4%Roosevelt7,464	68.6%Willkie16,272	0.0%	R+37.1	R+32.7	R+47.1	23,736
1936	R	40.4%Roosevelt8,982	44.7%Landon9,953	14.9%	R+4.4	R+17.9	R+28.6	22,259
1932	D	55.9%Roosevelt11,894	42.3%Hoover9,007	1.8%	D+13.6	D+37.8	R+4.2	21,284
1928	R	37.7%Smith8,136	61.9%Hoover13,369	0.4%	R+24.2	R+5.7	R+6.8	21,587
1924	R	34.8%Davis6,290	53.3%Coolidge9,641	11.7%La Follette2,119	R+18.5	R+8.3	D+6.7	18,091
1920	R	44.2%Cox8,175	54.4%Harding10,064	1.4%	R+10.2	R+29.5	D+16.0	18,500
1916	D	57.8%Wilson6,451	38.5%Hughes4,301	3.7%	D+19.3	R+7.3	D+16.1	11,161
1912	D	49.6%Wilson5,082	23.1%Taft2,362	27.3%	D+26.6	D+16.3	D+7.0	10,240
1908	D	53.3%Bryan6,138	43.1%Taft4,959	3.6%	D+10.2	D+15.4	D+19.8	11,512
1904	R	45.7%Parker4,757	50.8%Roosevelt5,291	3.6%	R+5.1	R+14.5	D+14.5	10,420
1900	D	53.6%Bryan5,946	44.2%McKinley4,904	2.2%	D+9.4	R+2.5	D+16.9	11,090
1896	D	55.4%Bryan6,347	43.5%McKinley4,988	1.1%	D+11.9	D+0.2	D+17.9	11,465
1892	D	53.2%Cleveland5,378	41.5%Harrison4,195	5.3%	D+11.7	—	D+10.0	10,110
1888	—	—	—	—	No data	—	—	—
1884	—	—	—	—	No data	—	—	—
1880	—	—	—	—	No data	—	—	—
1876	—	—	—	—	No data	—	—	—

Congressional elections · 3 Senate races

U.S. Senate

Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year	Won	Democratic	Republican	Total
2024	R	33.9%8,509	61.5%15,420	25,090
2022	R	35.2%6,322	64.7%11,618	17,958
2018	R	46.8%8,741	53.2%9,945	18,686

voter registration

Registered voters

Total registered voters, over time

Registered voters

Voter registration in Seneca County, OH
Year	Total registered
2016	34,399
2018	34,681
2020	34,413
2022	34,328
2024	34,779

domestic migration

Who moves in and out

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

−131 net domestic migration · 2025

20112025

Net −2,187 over 2011–2025 · gain loss

Arrivals reported $45,500 in average income, against $65,792 for residents who stayed — 31% lower. (IRS SOI, 2022–23)

The places arrivals came from lean R+27.8 on average — 9.7 points more Democratic-leaning than Seneca County, OH itself (R+37.5).

Where arrivals came from lean of each source

Hancock County, OH223R+38.4
Sandusky County, OH195R+30.9
Wood County, OH113R+10.2
Wyandot County, OH84R+51.2
Huron County, OH61R+44.0
Lucas County, OH54D+12.6

Where departures went households, 2022–23

Hancock County, OH222
Sandusky County, OH136
Wood County, OH122
Wyandot County, OH71
Franklin County, OH54
Huron County, OH42

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 Seneca County, OH in Seneca County, OH: net domestic migration by year
Year	Net domestic migration
2011	−171
2012	−419
2013	−288
2014	−69
2015	−265
2016	−280
2017	−181
2018	−108
2019	−76
2021	+16
2022	−215
2023	+17
2024	−17
2025	−131

Seneca County's mix of small cities like Tiffin and rural farmland anchors a voting pattern that has trended consistently rightward over the past four presidential cycles, with the 2024 margin of R+37.5 among the widest in the state's tier-two counties.

Across the recorded series it reached a Democratic high of 26.6 points in 1912 and a Republican high of 47.8 points in 1956. Between 2020 and 2024 the county moved 3.3 points toward the Republican candidate; the 2024 margin was 37.5 points.

A population of 54,770, a 88% non-Hispanic-white share, and a median household income of $66,025 describe the county. The county's voting pattern over the last decade is most similar to that of Huron County and Delaware County.

Political twins — counties

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

Huron County

Ohio

87.9twin score

12-yr trendelasticity% Evangelical

Delaware County

Iowa

87.0twin score

elasticity12-yr trend% Catholic≠ Italian ancestry

Sandusky County

Ohio

85.5twin score

12-yr trendelasticity2008–2012 trajectory≠ % Catholic

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.

Seneca County, Ohio. Akashic. https://akashic.app/county/39147/. 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/39147/stat-card/" width="100%" height="200" style="border:0;border-radius:12px;max-width:560px" title="Seneca County, OH — Akashic" loading="lazy"></iframe>

Cities & towns in Seneca County

Ohio at the ballot boxAll elections →

Presidentcounty detail2024 US Senatestatewide2024 Governorstate + county2022 US Houseall districts2024

Frequently asked questions

How did Seneca County, Ohio vote in 2024?

In 2024, Seneca County, Ohio voted Republican by 37.5 points (R+37.5), carried by the Republican candidate. Out of 25,263 votes cast, 7,765 went Democratic and 17,241 went Republican.

When did Seneca County, Ohio last vote Democratic?

The most recent presidential election in which Seneca County, Ohio voted Democratic was 1996.

How many people live in Seneca County, Ohio?

Seneca County, Ohio has a population of 54,770 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Seneca County, Ohio?

Median household income in Seneca County, Ohio is $66,025 — below the national median of $80,734. The Ohio state median is $71,389.

What is the political history of Seneca County, Ohio?

Akashic tracks 38 presidential elections in Seneca County, Ohio from 1876 to 2024. Of those, 9 went Democratic and 25 went Republican.

Year	Democrat	Republican	Others	Total
2024	7,765	17,241	257	25,263
2020	8,266	17,086	458	25,810
2016	7,404	14,825	2,339	24,568
2012	11,353	13,243	1,013	25,609
2008	13,087	13,823	643	27,553
2004	10,957	15,886	148	26,991

Year

Democrat

Republican

Others

Total

2024

7,765

17,241

257

25,263

2020

8,266

17,086

458

25,810

2016

7,404

14,825

2,339

24,568

2012

11,353

13,243

1,013

25,609

2008

13,087

13,823

643

27,553

2004

10,957

15,886

148

26,991

Measure	Seneca County	Ohio	United States
Median age	40.2	39.8	39.1
Age 18–24	10.8%	8.9%	9.2%
Age 65 and older	19.3%	18.3%	17.2%

Measure

Seneca County

Ohio

United States

Median age

40.2

39.8

39.1

Age 18–24

10.8%

8.9%

9.2%

Age 65 and older

19.3%

18.3%

17.2%

Measure	Seneca County	Ohio	United States
Median household income	$66,025	$71,389	$84,427
Poverty rate	11.9%	13.3%	12.5%
Bachelor's degree or higher (25+)	20.6%	31.6%	35.6%

Measure

Seneca County

Ohio

United States

Median household income

$66,025

$71,389

$84,427

Poverty rate

11.9%

13.3%

12.5%

Bachelor's degree or higher (25+)

20.6%

31.6%

35.6%

Measure	Seneca County	Ohio	United States
Speaks a non-English language at home	2.6%	8.0%	22.3%
Spanish	1.6%	2.7%	13.6%

Measure

Seneca County

Ohio

United States

Speaks a non-English language at home

2.6%

8.0%

22.3%

Spanish

1.6%

2.7%

13.6%

Measure	Seneca County	Ohio	United States
Catholic	27.2%	15.4%	18.6%
Evangelical Protestant	3.9%	19.5%	16.5%
Unclaimed / not counted	55.2%	52.2%	51.5%
Mainline Protestant	11.0%	7.0%	5.2%

Measure

Seneca County

Ohio

United States

Catholic

27.2%

15.4%

18.6%

Evangelical Protestant

3.9%

19.5%

16.5%

Unclaimed / not counted

55.2%

52.2%

51.5%

Mainline Protestant

11.0%

7.0%

5.2%

Seneca County precinct-level presidential election results for 2024

Precinct -PRECINCT TIFFIN 4-BPRECINCT TIFFIN 4-B

369

528

906

40.7%

58.3%

R+17.5

Precinct -PRECINCT PLEASANT TOWNSHIPPRECINCT PLEASANT TOWNSHIP

199

636

844

23.6%

75.4%

R+51.8

Precinct -PRECINCT BIG SPRING TOWNSHIPPRECINCT BIG SPRING TOWNSHIP

159

633

794

20.0%

79.7%

R+59.7

Precinct -PRECINCT TIFFIN 2-CPRECINCT TIFFIN 2-C

322

431

760

42.4%

56.7%

R+14.3

Precinct -PRECINCT JACKSON TOWNSHIPPRECINCT JACKSON TOWNSHIP

189

539

735

25.7%

73.3%

R+47.6

Precinct -PRECINCT LOUDON NORTHPRECINCT LOUDON NORTH

182

548

734

24.8%

74.7%

R+49.9

Precinct -PRECINCT CLINTON CPRECINCT CLINTON C

230

481

715

32.2%

67.3%

R+35.1

Precinct -PRECINCT EDEN NORTHPRECINCT EDEN NORTH

187

504

696

26.9%

72.4%

R+45.5

Precinct -PRECINCT ADAMS TOWNSHIPPRECINCT ADAMS TOWNSHIP

134

555

694

19.3%

80.0%

R+60.7

Precinct -PRECINCT THOMPSON TOWNSHIPPRECINCT THOMPSON TOWNSHIP

154

502

664

23.2%

75.6%

R+52.4

Precinct -PRECINCT SCIPIO TOWNSHIPPRECINCT SCIPIO TOWNSHIP

122

503

631

19.3%

79.7%

R+60.4

Precinct -PRECINCT FOSTORIA 1-APRECINCT FOSTORIA 1-A

279

339

625

44.6%

54.2%

R+9.6

Precinct -PRECINCT TIFFIN 4-APRECINCT TIFFIN 4-A

245

373

623

39.3%

59.9%

R+20.5

Precinct -PRECINCT TIFFIN 2-APRECINCT TIFFIN 2-A

250

352

609

41.1%

57.8%

R+16.7

Precinct -PRECINCT TIFFIN 1-BPRECINCT TIFFIN 1-B

255

342

608

41.9%

56.3%

R+14.3

Precinct -PRECINCT TIFFIN 4-CPRECINCT TIFFIN 4-C

202

355

564

35.8%

62.9%

R+27.1

Precinct -PRECINCT HOPEWELL APRECINCT HOPEWELL A

123

424

554

22.2%

76.5%

R+54.3

Precinct -PRECINCT TIFFIN 1-CPRECINCT TIFFIN 1-C

203

313

523

38.8%

59.8%

R+21.0

Precinct -PRECINCT HOPEWELL BPRECINCT HOPEWELL B

117

391

514

22.8%

76.1%

R+53.3

Precinct -PRECINCT FOSTORIA 4-APRECINCT FOSTORIA 4-A

181

309

499

36.3%

61.9%

R+25.7

Precinct -PRECINCT SENECA APRECINCT SENECA A

120

374

499

24.0%

74.9%

R+50.9

Precinct -PRECINCT CLINTON DPRECINCT CLINTON D

138

347

486

28.4%

71.4%

R+43.0

Precinct -PRECINCT FOSTORIA 1-BPRECINCT FOSTORIA 1-B

214

264

484

44.2%

54.5%

R+10.3

Precinct -PRECINCT TIFFIN 3-BPRECINCT TIFFIN 3-B

175

302

483

36.2%

62.5%

R+26.3

Precinct -PRECINCT VENICE TOWNSHIPPRECINCT VENICE TOWNSHIP

377

465

18.5%

81.1%

R+62.6

Precinct -PRECINCT ATTICA VILLAGEPRECINCT ATTICA VILLAGE

350

451

22.0%

77.6%

R+55.7

Precinct -PRECINCT TIFFIN 3-CPRECINCT TIFFIN 3-C

191

252

445

42.9%

56.6%

R+13.7

Precinct -PRECINCT FOSTORIA 4-BPRECINCT FOSTORIA 4-B

206

227

443

46.5%

51.2%

R+4.7

Precinct -PRECINCT BLOOM TOWNSHIPPRECINCT BLOOM TOWNSHIP

100

337

440

22.7%

76.6%

R+53.9

Precinct -PRECINCT FOSTORIA 3-APRECINCT FOSTORIA 3-A

195

241

440

44.3%

54.8%

R+10.5

Precinct -PRECINCT EDEN SOUTHPRECINCT EDEN SOUTH

107

316

426

25.1%

74.2%

R+49.1

Precinct -PRECINCT CLINTON APRECINCT CLINTON A

121

298

424

28.5%

70.3%

R+41.7

Precinct -PRECINCT CLINTON BPRECINCT CLINTON B

132

286

422

31.3%

67.8%

R+36.5

Precinct -PRECINCT LIBERTY APRECINCT LIBERTY A

325

410

20.0%

79.3%

R+59.3

Precinct -PRECINCT FOSTORIA 3-BPRECINCT FOSTORIA 3-B

191

211

408

46.8%

51.7%

R+4.9

Precinct -PRECINCT REED TOWNSHIPPRECINCT REED TOWNSHIP

102

305

408

25.0%

74.8%

R+49.8

Precinct -PRECINCT TIFFIN 3-DPRECINCT TIFFIN 3-D

143

256

407

35.1%

62.9%

R+27.8

Precinct -PRECINCT TIFFIN 4-DPRECINCT TIFFIN 4-D

155

231

395

39.2%

58.5%

R+19.2

Precinct -PRECINCT HOPEWELL CPRECINCT HOPEWELL C

106

278

387

27.4%

71.8%

R+44.4

Precinct -PRECINCT LOUDON SOUTHPRECINCT LOUDON SOUTH

280

361

21.1%

77.6%

R+56.5

Precinct -PRECINCT TIFFIN 3-APRECINCT TIFFIN 3-A

133

222

360

36.9%

61.7%

R+24.7

Precinct -PRECINCT SENECA BPRECINCT SENECA B

293

348

15.2%

84.2%

R+69.0

Precinct -PRECINCT LIBERTY BPRECINCT LIBERTY B

261

347

23.9%

75.2%

R+51.3

Precinct -PRECINCT BLOOMVILLE VILLAGEPRECINCT BLOOMVILLE VILLAGE

257

338

23.4%

76.0%

R+52.7

Precinct -PRECINCT CLINTON EPRECINCT CLINTON E

101

233

338

29.9%

68.9%

R+39.1

Precinct -PRECINCT TIFFIN 1-APRECINCT TIFFIN 1-A

127

165

300

42.3%

55.0%

R+12.7

Precinct -PRECINCT TIFFIN 2-BPRECINCT TIFFIN 2-B

114

181

300

38.0%

60.3%

R+22.3

Precinct -PRECINCT GREEN SPRINGS VILLAGEPRECINCT GREEN SPRINGS VILLAGE

218

284

22.9%

76.8%

R+53.9

Precinct -PRECINCT BETTSVILLE VILLAGEPRECINCT BETTSVILLE VILLAGE

194

274

28.1%

70.8%

R+42.7

Precinct -PRECINCT REPUBLIC VILLPRECINCT REPUBLIC VILL

205

268

22.4%

76.5%

R+54.1

Precinct -PRECINCT NEW RIEGEL VILLAGEPRECINCT NEW RIEGEL VILLAGE

129

24.8%

75.2%

R+50.4

PRECINCT ADAMS TOWNSHIP39_39147147ABJ

—

Even

PRECINCT ATTICA VILLAGE39_39147147ACT

—

Even

PRECINCT BETTSVILLE VILLAGE39_39147147ACD

—

Even

PRECINCT BIG SPRING TOWNSHIP39_39147147ABM

—

Even

PRECINCT BLOOM TOWNSHIP39_39147147ABO

—

Even

PRECINCT BLOOMVILLE VILLAGE39_39147147ABP

—

Even

PRECINCT CLINTON A39_39147147ABQ

—

Even

PRECINCT CLINTON B39_39147147ABR

—

Even

PRECINCT CLINTON C39_39147147ABS

—

Even

PRECINCT CLINTON D39_39147147ABT

—

Even

PRECINCT CLINTON E39_39147147ABU

—

Even

PRECINCT EDEN NORTH39_39147147ABV

—

Even

PRECINCT EDEN SOUTH39_39147147ABX

—

Even

PRECINCT FOSTORIA 1-A39_39147147AAA

—

Even

PRECINCT FOSTORIA 1-B39_39147147AAC

—

Even

PRECINCT FOSTORIA 3-A39_39147147AAE

—

Even

PRECINCT FOSTORIA 3-B39_39147147AAF

—

Even

PRECINCT FOSTORIA 4-A39_39147147AAI

—

Even

PRECINCT FOSTORIA 4-B39_39147147AAL

—

Even

PRECINCT GREEN SPRINGS VILLAGE39_39147147ABI

—

Even

PRECINCT HOPEWELL A39_39147147ABY

—

Even

PRECINCT HOPEWELL B39_39147147ABZ

—

Even

PRECINCT HOPEWELL C39_39147147ACA

—

Even

PRECINCT JACKSON TOWNSHIP39_39147147ACB

—

Even

PRECINCT LIBERTY A39_39147147ACE

—

Even

PRECINCT LIBERTY B39_39147147ACF

—

Even

PRECINCT LOUDON NORTH39_39147147ACG

—

Even

PRECINCT LOUDON SOUTH39_39147147ACH

—

Even

PRECINCT NEW RIEGEL VILLAGE39_39147147ABL

—

Even

PRECINCT PLEASANT TOWNSHIP39_39147147ACJ

—

Even

PRECINCT REED TOWNSHIP39_39147147ACL

—

Even

PRECINCT REPUBLIC VILL39_39147147ACN

—

Even

PRECINCT SCIPIO TOWNSHIP39_39147147ACM

—

Even

PRECINCT SENECA A39_39147147ACP

—

Even

PRECINCT SENECA B39_39147147ACQ

—

Even

PRECINCT THOMPSON TOWNSHIP39_39147147ACR

—

Even

PRECINCT TIFFIN 1-A39_39147147AAM

—

Even

PRECINCT TIFFIN 1-B39_39147147AAN

—

Even

PRECINCT TIFFIN 1-C39_39147147AAO

—

Even

PRECINCT TIFFIN 2-A39_39147147AAR

—

Even

PRECINCT TIFFIN 2-B39_39147147AAS

—

Even

PRECINCT TIFFIN 2-C39_39147147AAT

—

Even

PRECINCT TIFFIN 3-A39_39147147AAW

—

Even

PRECINCT TIFFIN 3-B39_39147147AAX

—

Even

PRECINCT TIFFIN 3-C39_39147147AAY

—

Even

PRECINCT TIFFIN 3-D39_39147147AAZ

—

Even

PRECINCT TIFFIN 4-A39_39147147ABB

—

Even

PRECINCT TIFFIN 4-B39_39147147ABC

—

Even

PRECINCT TIFFIN 4-C39_39147147ABE

—

Even

PRECINCT TIFFIN 4-D39_39147147ABG

—

Even

PRECINCT VENICE TOWNSHIP39_39147147ACU

—

Even

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	+11.7%
1896	+11.9%
1900	+9.4%
1904	−5.1%
1908	+10.2%
1912	+26.6%
1916	+19.3%
1920	−10.2%
1924	−18.5%
1928	−24.2%
1932	+13.6%
1936	−4.4%
1940	−37.1%
1944	−41.7%
1948	−18.1%
1952	−43.1%
1956	−47.8%
1960	−22.4%
1964	+20.7%
1968	−13.3%
1972	−25.1%
1976	−7.4%
1980	−29.5%
1984	−35.0%
1988	−17.9%
1992	−1.8%
1996	+1.4%
2000	−17.9%
2004	−18.3%
2008	−2.7%
2012	−7.4%
2016	−30.2%
2020	−34.2%
2024	−37.5%

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

30.7%Harris7,765

68.2%Trump17,241

0.5%Oliver129 +3

R+37.5

R+3.3

R+36.0

25,263

All 6 candidates in 2024 · 4 minor / independent

Donald J TrumpRepublican68.2%17,241
Kamala D HarrisDemocratic30.7%7,765
Chase OliverNonpartisan0.5%129
Richard DuncanNonpartisan0.3%66
Peter SonskiNonpartisan0.2%61
OtherAll other candidates0.0%1

2020

32.0%Biden8,266

66.2%Trump17,086

1.4%Jorgensen357

R+34.2

R+4.0

R+38.6

25,810

2016

30.1%Clinton7,404

60.3%Trump14,825

5.3%Johnson1,302

R+30.2

R+22.8

R+32.3

24,568

2012

44.3%Obama11,353

51.7%Romney13,243

1.2%Johnson316

R+7.4

R+4.7

R+11.2

25,609

2008

47.5%Obama13,087

50.2%McCain13,823

2.3%

R+2.7

D+15.6

R+9.9

27,553

2004

40.6%Kerry10,957

58.9%Bush15,886

0.5%

R+18.3

R+0.4

R+15.8

26,991

2000

39.1%Gore9,512

56.9%Bush13,863

2.7%Nader666

R+17.9

R+19.3

R+18.4

24,351

1996

42.7%Clinton10,044

41.3%Dole9,713

14.9%Perot3,498

D+1.4

D+3.3

R+7.1

23,511

1992

35.5%Clinton9,280

37.3%Bush9,763

26.6%Perot6,967

R+1.8

D+16.1

R+7.4

26,150

1988

40.6%Dukakis9,504

58.5%Bush13,704

0.9%

R+17.9

D+17.0

R+10.2

23,430

1984

32.1%Mondale7,905

67.0%Reagan16,520

0.9%

R+35.0

R+5.4

R+16.7

24,642

1980

31.4%Carter7,303

60.9%Reagan14,172

7.7%

R+29.5

R+22.2

R+19.8

23,259

1976

44.7%Carter10,074

52.1%Ford11,730

3.2%

R+7.4

D+17.8

R+9.4

22,516

1972

35.7%McGovern8,180

60.8%Nixon13,939

3.5%

R+25.1

R+11.8

R+2.0

22,918

1968

39.0%Humphrey8,970

52.3%Nixon12,040

8.7%

R+13.3

R+34.0

R+12.6

23,020

1964

60.4%Johnson14,518

39.6%Goldwater9,536

0.0%

D+20.7

D+43.1

R+1.9

24,054

1960

38.8%Kennedy10,001

61.2%Nixon15,772

0.0%

R+22.4

D+25.4

R+22.6

25,773

1956

26.1%Stevenson6,260

73.9%Eisenhower17,728

0.0%

R+47.8

R+4.7

R+32.4

23,988

1952

28.5%Stevenson7,060

71.5%Eisenhower17,750

0.0%

R+43.1

R+25.0

R+32.3

24,810

1948

40.7%Truman7,954

58.9%Dewey11,493

0.4%

R+18.1

D+23.6

R+22.6

19,524

1944

29.1%Roosevelt6,224

70.9%Dewey15,137

0.0%

R+41.7

R+4.6

R+49.2

21,361

1940

31.4%Roosevelt7,464

68.6%Willkie16,272

0.0%

R+37.1

R+32.7

R+47.1

23,736

1936

40.4%Roosevelt8,982

44.7%Landon9,953

14.9%

R+4.4

R+17.9

R+28.6

22,259

1932

55.9%Roosevelt11,894

42.3%Hoover9,007

1.8%

D+13.6

D+37.8

R+4.2

21,284

1928

37.7%Smith8,136

61.9%Hoover13,369

0.4%

R+24.2

R+5.7

R+6.8

21,587

1924

34.8%Davis6,290

53.3%Coolidge9,641

11.7%La Follette2,119

R+18.5

R+8.3

D+6.7

18,091

1920

44.2%Cox8,175

54.4%Harding10,064

1.4%

R+10.2

R+29.5

D+16.0

18,500

1916

57.8%Wilson6,451

38.5%Hughes4,301

3.7%

D+19.3

R+7.3

D+16.1

11,161

1912

49.6%Wilson5,082

23.1%Taft2,362

27.3%

D+26.6

D+16.3

D+7.0

10,240

1908

53.3%Bryan6,138

43.1%Taft4,959

3.6%

D+10.2

D+15.4

D+19.8

11,512

1904

45.7%Parker4,757

50.8%Roosevelt5,291

3.6%

R+5.1

R+14.5

D+14.5

10,420

1900

53.6%Bryan5,946

44.2%McKinley4,904

2.2%

D+9.4

R+2.5

D+16.9

11,090

1896

55.4%Bryan6,347

43.5%McKinley4,988

1.1%

D+11.9

D+0.2

D+17.9

11,465

1892

53.2%Cleveland5,378

41.5%Harrison4,195

5.3%

D+11.7

—

D+10.0

10,110

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

2024

33.9%8,509

61.5%15,420

25,090

2022

35.2%6,322

64.7%11,618

17,958

2018

46.8%8,741

53.2%9,945

18,686

Frequently asked questions

Voter registration in Seneca County, OH
Year	Total registered
2016	34,399
2018	34,681
2020	34,413
2022	34,328
2024	34,779

How did Seneca County, Ohio vote in 2024?

In 2024, Seneca County, Ohio voted Republican by 37.5 points (R+37.5), carried by the Republican candidate. Out of 25,263 votes cast, 7,765 went Democratic and 17,241 went Republican.

When did Seneca County, Ohio last vote Democratic?

The most recent presidential election in which Seneca County, Ohio voted Democratic was 1996.

How many people live in Seneca County, Ohio?

Seneca County, Ohio has a population of 54,770 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Seneca County, Ohio?

Median household income in Seneca County, Ohio is $66,025 — below the national median of $80,734. The Ohio state median is $71,389.

What is the political history of Seneca County, Ohio?

Akashic tracks 38 presidential elections in Seneca County, Ohio from 1876 to 2024. Of those, 9 went Democratic and 25 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