St. Louis, MO-IL, Illinois
AkashicSt. Louis, MO-ILHarrisD+0.8
How it voted
Share of the 2024 vote
| Kamala Harris ✓Democratic | 49.5% | 698,935 |
|---|---|---|
| Donald TrumpRepublican | 48.7% | 687,523 |
| Robert F. Kennedy Jr.Independent | 1.7% | 24,679 |
D+60R+60
15 counties, each filled by 2024 D-vs-R margin. Hover any county for its result.
County-level results (15 counties) — table
| County | Winner | Margin |
|---|---|---|
| Bond County, IL | Republican | R+44.7 |
| Calhoun County, IL | Republican | R+55.9 |
| Clinton County, IL | Republican | R+51.8 |
| Franklin County, MO | Republican | R+45.9 |
| Jefferson County, MO | Republican | R+36.7 |
| Jersey County, IL | Republican | R+50.2 |
| Lincoln County, MO | Republican | R+55.9 |
| Macoupin County, IL | Republican | R+39.2 |
| Madison County, IL | Republican | R+13.2 |
| Monroe County, IL | Republican | R+36.3 |
| St. Charles County, MO | Republican | R+17.0 |
| St. Clair County, IL | Democratic | D+7.8 |
| St. Louis city, MO | Democratic | D+64.6 |
| St. Louis County, MO | Democratic | D+23.4 |
| Warren County, MO | Republican | R+49.5 |
34 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 49.5%Harris698,935 | 48.7%Trump687,523 | 1.7%Kennedy24,679 | 1,411,137 | ||
| D | 50.6%Biden742,085 | 47.3%Trump693,693 | 2.1%Jorgensen30,507 | 1,466,285 | ||
| R | 46.6%Clinton645,962 | 47.4%Trump656,719 | 6.0%Johnson82,952 | 1,385,633 | ||
| D | 52.5%Obama713,828 | 45.6%Romney619,990 | 2.0%Johnson26,857 | 1,360,675 | ||
| D | 57.5%Obama825,040 | 41.4%McCain593,436 | 1.1%Nader15,942 | 1,434,418 | ||
| D | 53.6%Kerry716,493 | 45.8%Bush612,347 | 0.6%Badnarik7,487 | 1,336,327 | ||
| D | 52.7%Gore614,278 | 44.8%Bush521,580 | 2.5%Nader28,671 | 1,164,529 | ||
| D | 51.6%Clinton551,340 | 38.1%Dole406,823 | 10.3%Perot109,623 | 1,067,786 | ||
| D | 47.7%Clinton579,480 | 31.2%Bush378,791 | 21.1%Perot255,553 | 1,213,824 | ||
| D | 50.6%Dukakis544,743 | 49.0%Bush528,195 | 0.4%Paul4,004 | 1,076,942 | ||
| R | 42.4%Mondale463,885 | 57.5%Reagan628,521 | 0.1%Bergland1,343 | 1,093,749 | ||
| R | 45.0%Carter485,904 | 49.9%Reagan538,410 | 5.1%Anderson54,908 | 1,079,222 | ||
| D | 51.3%Carter528,831 | 47.1%Ford485,716 | 1.6%McCarthy16,734 | 1,031,281 | ||
| R | 43.8%McGovern431,533 | 56.0%Nixon551,856 | 0.2%Schmitz1,643 | 985,032 | ||
| D | 48.4%Humphrey466,471 | 39.9%Nixon384,520 | 11.6%Wallace112,209 | 963,200 | ||
| D | 68.0%Johnson651,269 | 32.0%Goldwater307,060 | 0.0% | 958,329 | ||
| D | 57.5%Kennedy566,706 | 42.5%Nixon418,547 | 0.1%Byrd549 | 985,802 | ||
| D | 53.7%Stevenson489,301 | 46.3%Eisenhower421,679 | 0.0%Andrews430 | 911,410 | ||
| D | 55.2%Stevenson503,319 | 44.7%Eisenhower407,563 | 0.2%Hallinan1,395 | 912,277 | ||
| D | 58.9%Truman433,754 | 40.4%Dewey297,205 | 0.7%Thurmond5,243 | 736,202 | ||
| D | 55.2%Roosevelt399,036 | 44.5%Dewey321,324 | 0.3%Thomas2,465 | 722,825 | ||
| D | 54.2%Roosevelt441,894 | 45.4%Willkie370,111 | 0.4%Thomas3,262 | 815,267 | ||
| D | 62.1%Roosevelt481,509 | 34.9%Landon270,854 | 2.9%Lemke22,687 | 775,050 | ||
| D | 62.9%Roosevelt433,564 | 34.4%Hoover237,340 | 2.7%Thomas18,313 | 689,217 | ||
| D | 50.1%Smith317,678 | 49.4%Hoover313,377 | 0.5%Thomas3,401 | 634,456 | ||
| R | 34.3%Davis169,091 | 51.0%Coolidge250,988 | 14.7%La Follette72,295 | 492,374 | ||
| R | 35.1%Cox169,605 | 58.1%Harding281,147 | 6.8%Debs32,931 | 483,683 | ||
| R | 45.6%Wilson154,130 | 51.2%Hughes173,119 | 3.1%Benson10,626 | 337,875 | ||
| D | 42.1%Wilson103,818 | 33.4%Taft82,476 | 24.5%Roosevelt60,456 | 246,750 | ||
| R | 43.0%Bryan109,223 | 52.5%Taft133,495 | 4.5%Debs11,520 | 254,238 | ||
| R | 42.0%Parker89,380 | 52.3%Roosevelt111,288 | 5.7%Debs12,199 | 212,867 | ||
| R | 47.6%Bryan106,323 | 49.6%McKinley110,734 | 2.8%Woolley6,172 | 223,229 | ||
| R | 45.0%Bryan95,029 | 54.0%McKinley114,081 | 1.1%Palmer2,228 | 211,338 | ||
| D | 49.5%Cleveland74,699 | 47.7%Harrison71,900 | 2.8%Weaver4,245 | 150,844 |
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | +1.9% |
| 1896 | −9.0% |
| 1900 | −2.0% |
| 1904 | −10.3% |
| 1908 | −9.5% |
| 1912 | +8.6% |
| 1916 | −5.6% |
| 1920 | −23.1% |
| 1924 | −16.6% |
| 1928 | +0.7% |
| 1932 | +28.5% |
| 1936 | +27.2% |
| 1940 | +8.8% |
| 1944 | +10.8% |
| 1948 | +18.5% |
| 1952 | +10.5% |
| 1956 | +7.4% |
| 1960 | +15.0% |
| 1964 | +35.9% |
| 1968 | +8.5% |
| 1972 | −12.2% |
| 1976 | +4.2% |
| 1980 | −4.9% |
| 1984 | −15.1% |
| 1988 | +1.5% |
| 1992 | +16.5% |
| 1996 | +13.5% |
| 2000 | +8.0% |
| 2004 | +7.8% |
| 2008 | +16.1% |
| 2012 | +6.9% |
| 2016 | −0.8% |
| 2020 | +3.3% |
| 2024 | +0.8% |
DemocraticRepublican
voter registration
Registered voters
Total registered voters, over time
Registered voters
| Year | Total registered |
|---|---|
| 2016 | 2,051,618 |
| 2018 | 1,994,557 |
| 2020 | 1,905,191 |
| 2022 | 2,017,251 |
| 2024 | 2,073,660 |
Source: U.S. Election Assistance Commission (EAVS)
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.
Across the recorded series it reached a Democratic high of 35.9 points in 1964 and a Republican high of 23.1 points in 1920. Between 2020 and 2024 the metro moved 2.5 points toward the Republican candidate; the 2024 margin was 0.8 points.
A population of 2,810,850, a 71% non-Hispanic-white share, and a median household income of $81,650 describe the metro. The metro's voting pattern over the last decade is most similar to that of Philadelphia-Camden-Wilmington, PA-NJ-DE-MD and Detroit-Warren-Dearborn, MI.
Political twins — metros
The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
90.9twin score
population scale2000–2008 trajectory≠ 2016 margin
Detroit-Warren-Dearborn, MI
90.7twin score
population scale2000–2024 trajectory≠ Polish ancestry
Louisville/Jefferson County, KY-IN
89.4twin score
population scale2016–2024 trajectory
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.
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. Louis, MO-IL, Illinois. Akashic. https://akashic.app/cbsa/41180/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did St. Louis, MO-IL, Illinois vote in 2024?
In 2024, St. Louis, MO-IL, Illinois voted Democratic by 0.8 points (D+0.8), carried by the Democratic candidate. Out of 1,411,137 votes cast, 698,935 went Democratic and 687,523 went Republican.
When did St. Louis, MO-IL, Illinois last vote Republican?
The most recent presidential election in which St. Louis, MO-IL, Illinois voted Republican was 2016.
How many people live in St. Louis, MO-IL, Illinois?
St. Louis, MO-IL, Illinois has a population of 2,810,850 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in St. Louis, MO-IL, Illinois?
Median household income in St. Louis, MO-IL, Illinois is $81,650 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of St. Louis, MO-IL, Illinois?
Akashic tracks 34 presidential elections in St. Louis, MO-IL, Illinois from 1892 to 2024. Of those, 23 went Democratic and 11 went Republican.