How did St. Louis, MO-IL vote in the 2024 presidential election?

St. Louis, MO-IL voted Democratic in 2024 with a margin of D+0.8. Kamala D Harris received 698,935 votes and Donald Trump received 687,523 out of 1,411,137 total votes cast, a 2.5-point shift toward Republicans from 2020.

What is St. Louis, MO-IL's political history?

St. Louis, MO-IL has 40 presidential elections on record, spanning 1868 to 2024. Democrats have won 27 and Republicans 13 of those contests. The largest single-election swing was 24.5 points in 1932.

What are the demographics of St. Louis, MO-IL?

St. Louis, MO-IL has a population of 11,069,188 according to the 2020 Census. The racial composition is 74.7% non-Hispanic white, 2.6% Hispanic, 17.8% Black. About 31% of residents hold a bachelor's degree or higher. Median household income is $59,637.

Which places are most similar to St. Louis, MO-IL?

Based on demographic and electoral similarity analysis, the three most similar metro areas to St. Louis, MO-IL are Louisville/Jefferson County, KY-IN, Kansas City, MO-KS, Virginia Beach-Chesapeake-Norfolk, VA-NC. Similarity is computed using a vector embedding of demographic, economic, and electoral characteristics.

Live · Metropolitan area

St. Louis, MO-IL

A shrinking core metro where the Missouri-Illinois state line splits a single labor market

St. Louis has lost population in its urban core for decades while inner-ring suburbs have absorbed growth, producing a fragmented political map where city precincts, older suburbs, and exurban counties routinely return starkly different margins.

Presidential margin · 2024

Data unavailable for this race.

Race data unavailable

Geography

Race data unavailable

No current race for this office.

2024FIPS 41180

Population11.1M

Median ageU.S. 38.9y

38.2y▼ 0.7

Bachelor's+U.S. 35%

31.1%▼ 3.9

White74.7%
Black17.8%
Two or more2.9%
Hispanic2.6%
Asian2.1%
Other0.8%

Trajectory · 2008–2024

St. Louis, MO-ILBaseline

Cycle2024

Open in Cartographer

Constituent Counties

Open in Cartographer

Similarity Explorer

Similar metro areas

Reads like Louisville/Jefferson County, KY-IN, Kansas City, MO-KS, and Virginia Beach-Chesapeake-Norfolk, VA-NC.

8 visible matches

Louisville/Jefferson County, KY-IN

Educated rural competitive 2

R+6.7

Similarity score99%

Kansas City, MO-KS

Educated rural competitive 2

D+2.6

Similarity score99%

Virginia Beach-Chesapeake-Norfolk, VA-NC

Educated rural competitive 2

D+10.2

Similarity score97%

Charlotte-Concord-Gastonia, NC-SC

Educated rural competitive 2

R+1.3

Similarity score97%

Cincinnati, OH-KY-IN

Educated rural competitive 2

R+15.8

Similarity score97%

Minneapolis-St. Paul-Bloomington, MN-WI

Educated rural competitive 2

D+16.8

Similarity score96%

Philadelphia-Camden-Wilmington, PA-NJ-DE-MD

Educated rural competitive 2

D+25.4

Similarity score95%

Omaha, NE-IA

Educated rural competitive 2

R+3.5

Similarity score95%

Constituent Geography

Counties in St. Louis, MO-IL

2024 presidential results across the counties that make up this geography.

Sort:

County	Pop.	Margin	Dem	Rep	Total	Share
St. Louis County	1.0M	D+23.4	305,635	187,982	502,738	8.9%
St. Louis County	1.0M	D+23.4	305,635	187,982	502,738	8.9%
St. Louis County	996K	D+23.4	305,635	187,982	502,738	8.9%
St. Louis County	995K	D+23.4	305,635	187,982	502,738	8.9%
St. Charles	415K	R+17.0	92,226	130,588	226,166	4.0%
St. Charles	380K	R+17.0	92,226	130,588	226,166	4.0%
St. Louis City	355K	D+64.6	94,458	19,342	116,271	2.1%
St. Louis City	348K	D+64.6	94,458	19,342	116,271	2.1%
St. Charles	343K	R+17.0	92,226	130,588	226,166	4.0%
St. Louis City	316K	D+64.6	94,458	19,342	116,271	2.1%
St. Louis City	289K	D+64.6	94,458	19,342	116,271	2.1%
St. Charles	284K	R+17.0	92,226	130,588	226,166	4.0%
Madison	267K	R+13.2	56,341	73,925	133,072	2.4%
Madison	267K	R+13.2	56,341	73,925	133,072	2.4%
St. Clair	266K	D+7.8	63,433	54,021	119,962	2.1%
Madison	264K	R+13.2	56,341	73,925	133,072	2.4%
St. Clair	261K	D+7.8	63,433	54,021	119,962	2.1%
Madison	259K	R+13.2	56,341	73,925	133,072	2.4%
St. Clair	256K	D+7.8	63,433	54,021	119,962	2.1%
St. Clair	254K	D+7.8	63,433	54,021	119,962	2.1%
Jefferson	229K	R+36.7	36,965	80,796	119,314	2.1%
Jefferson	222K	R+36.7	36,965	80,796	119,314	2.1%
Jefferson	215K	R+36.7	36,965	80,796	119,314	2.1%
Jefferson	198K	R+36.7	36,965	80,796	119,314	2.1%
Franklin	106K	R+45.9	14,694	40,126	55,464	1.0%
Franklin	102K	R+45.9	14,694	40,126	55,464	1.0%
Franklin	100K	R+45.9	14,694	40,126	55,464	1.0%
Franklin	94K	R+45.9	14,694	40,126	55,464	1.0%
Lincoln	63K	R+55.9	6,908	24,866	32,133	0.6%
Lincoln	54K	R+55.9	6,908	24,866	32,133	0.6%
Lincoln	51K	R+55.9	6,908	24,866	32,133	0.6%
Macoupin	49K	R+39.2	6,892	16,065	23,425	0.4%
Macoupin	48K	R+39.2	6,892	16,065	23,425	0.4%
Macoupin	46K	R+39.2	6,892	16,065	23,425	0.4%
Macoupin	44K	R+39.2	6,892	16,065	23,425	0.4%
Lincoln	39K	R+55.9	6,908	24,866	32,133	0.6%
Clinton	38K	R+51.8	4,447	14,407	19,230	0.3%
Warren	37K	R+49.5	4,970	14,915	20,095	0.4%
Clinton	37K	R+51.8	4,447	14,407	19,230	0.3%
Clinton	36K	R+51.8	4,447	14,407	19,230	0.3%
Clinton	36K	R+51.8	4,447	14,407	19,230	0.3%
Monroe	35K	R+36.3	6,473	14,055	20,902	0.4%
Monroe	34K	R+36.3	6,473	14,055	20,902	0.4%
Warren	33K	R+49.5	4,970	14,915	20,095	0.4%
Monroe	32K	R+36.3	6,473	14,055	20,902	0.4%
Warren	30K	R+49.5	4,970	14,915	20,095	0.4%
Monroe	28K	R+36.3	6,473	14,055	20,902	0.4%
Warren	25K	R+49.5	4,970	14,915	20,095	0.4%
Jersey	22K	R+50.2	2,816	8,684	11,694	0.2%
Jersey	22K	R+50.2	2,816	8,684	11,694	0.2%
Jersey	22K	R+50.2	2,816	8,684	11,694	0.2%
Jersey	21K	R+50.2	2,816	8,684	11,694	0.2%
Bond	18K	R+44.7	2,117	5,692	7,991	0.1%
Bond	18K	R+44.7	2,117	5,692	7,991	0.1%
Bond	17K	R+44.7	2,117	5,692	7,991	0.1%
Bond	17K	R+44.7	2,117	5,692	7,991	0.1%
Calhoun	5K	R+55.9	560	2,059	2,680	0.0%
Calhoun	5K	R+55.9	560	2,059	2,680	0.0%
Calhoun	5K	R+55.9	560	2,059	2,680	0.0%
Calhoun	4K	R+55.9	560	2,059	2,680	0.0%

60 countiesTotal votes: 5,644,548

Historian Query

Ask the Historian

Explore St. Louis, MO-IL's political evolution with the Historian

“How has the St. Louis, MO-IL metro area voted in presidential elections?”

Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.

St. Louis, MO-ILCensus ACS 2024Ancestry detail available

Census race profile

Major Census race and ethnicity groups shown as a share of total population.

Expand rows for ancestry detail

White (Non-Hispanic) 74.7%Black 17.8%Hispanic 2.6%Multiracial 2.5%Asian 2.1%

Group	St. Louis, MO-IL	National
▶White (Non-Hispanic)(13)	74.7%	57.4%
▶Black / African American(13)	17.8%	12.2%
▶Hispanic / Latino(18)	2.6%	19.3%
Multiracial / Other	2.5%	4.0%
▶Asian(6)	2.1%	6.0%
▶Middle Eastern / North African(10)	0.5%	0.9%
▶Native American / Alaska Native(1)	0.2%	0.9%

Method notes

Census treats race and Hispanic/Latino origin as separate questions. Race categories other than Hispanic reflect total populations (small Hispanic overlap in Black, Asian, AIAN, NHPI). “Multiracial / Other” is derived as a non-overlapping remainder.

Click rows to expand ancestry detail. Ancestry from ACS B04006, B03001, B02020, B02016. Totals may differ from race — individuals can report multiple ancestries.

Black / African American (estimated remainder) is derived as Black population share minus reported Sub-Saharan African and West Indian ancestry. It is shown as an estimated ancestry detail, not a standalone Census ancestry category.

MENA estimated from ancestry reporting — Census does not have a separate MENA race category. Not shown in bar (overlaps with other race groups).

Religious Adherents

Population that are religious adherents:

51.2%(1.4M people)

U.S. Religion Census 2020

Browse all religions

Catholic-Evangelical edge: +5.4pp (vs national 4.5pp). A moderate religious balance between Catholic and Evangelical traditions.

Ecological pattern — how to read this

Reflects patterns in counties where this religious tradition concentrates — not a claim about individual voters.

Values are derived by joining Religion Census 2020 (U.S. Religion Data Archive) with certified election results at the county level. That means we know what counties with more or fewer of this group did — not how any individual voted.

This is known as ecological inference. It is a valid way to surface geographic correlation but must not be read as a personal-vote claim about anyone in the group.

Tradition	% Pop	% Adherents	US Pop	US Adherents
Catholic	21.2%	41.5%	—	—
Evangelical Protestant	16.2%	31.6%	—	—
Mainline Protestant	5.8%	11.2%	—	—
Black Protestant	4.0%	7.7%	—	—
Other	3.9%	7.5%	—	—
LDS (Mormon)	0.7%	1.4%	—	—
Orthodox Christian	0.2%	0.5%	—	—
Non-religiousPopulation	48.8%	—	—	—

Click the chevron to expand denominations. Tradition and denomination rows label both share of total population and share of all religious adherents. Non-religious is shown as a share of total population only.

Explore Catholic adherence nationally

Who lives in the St. Louis, MO-IL metro area? 11,069,188 residents across 60 counties.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.

Export CSVPro

St. Louis, MO-IL vs National11.1M residents

Population & electorate

Scale, voting-age share, and this geography's footprint inside the national electorate.

Total population

Local vs state vs U.S.

11.1M

local

11.1MNational 334.9M

Share of U.S. population

Local vs state vs U.S.

3.31%

local

3.31%National 100%

Voting-age population

Local vs state vs U.S.

38.4%

local

38.4%National 75.7%

Economic profile

Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.

Median household income

Local vs state vs U.S.

$59,637

local

$59,637National $83,960

Poverty rate

Local vs state vs U.S.

11.2%

local

11.2%National 12.5%

College degree

Local vs state vs U.S.

31.1%

local

31.1%National 35.6%

Homeownership

Local vs state vs U.S.

70.8%

local

70.8%National 65.2%

Community profile

Age structure, language use, and nativity signals that explain how this geography differs from state and nation.

Median age

Local vs state vs U.S.

38.2 yrs

local

38.2 yrsNational 39.1 yrs

Age 18–29

Local vs state vs U.S.

11.7%

local

11.7%National 15.7%

Age 65+

Local vs state vs U.S.

11.6%

local

11.6%National 17.0%

Foreign born

Local vs state vs U.S.

4.2%

local

4.2%National 14.1%

Non-English at home

Local vs state vs U.S.

6.1%

local

6.1%National 22.2%

English only

Local vs state vs U.S.

93.9%

local

93.9%National 77.8%

Voter Turnout

Turnout in St. Louis, MO-IL

Turnout % = votes cast ÷ citizen voting-age population (CVAP). Source: CVAP Special Tab 2020-2024.

2024 Turnout

66.0%

vs Previous

-2.5pp

Eligible Non-Voters

727K · 34.0%

Citizen VAP

2,137,690

History

1988–2024

Ticket-Splitting

Do voters in St. Louis, MO-IL split their tickets?

Divergence between offices in the same election reveals persuadable voters.

ConsistencyModerate splitting (55/100)

2024 Office Comparisons

Offices	Margin A	Margin B	Split
President vs Senate	D+0.8	D+10.0	9.2pp
Senate vs Governor	D+10.0	D+1.4	8.6pp
President vs Governor	D+0.8	D+1.4	0.6pp

Average divergence across office pairs: 9.3pp

Containing Geography

Located In

St. Louis, MO-IL sits inside these higher-level geographies.

Illinois(State)Missouri(State)

Upgrade Path

Unlock Metro Area Analytics

Advance from the public dossier into precinct-level, insight-rich district intelligence.

Target plan Pro$33/mo

Precinct data, Smart Insights, full history, and export controls tailored to place pages.

Precinct-Level Data

See results for every neighborhood and voting precinct

Smart Insights

Automated highlights from recent election patterns

Full Historical Access

165 years of election data at every level of geography

CSV Exports

Download any table or chart as a CSV file

Upgrade to Pro$33/mo