St. Louis County, Missouri
AkashicSt. Louis County, MOHarrisD+23.4
2024 precinct map of St. Louis CountyPrecinct-level 2024 presidential results for St. Louis County, with each precinct boundary colored by Democratic-vs-Republican margin, and gold where an independent or third-party candidate carried the precinct.
How it voted
Share of the 2024 vote
| Kamala Harris ✓Democratic | 60.8% | 305,635 |
|---|---|---|
| Donald TrumpRepublican | 37.4% | 187,982 |
| Chase OliverLibertarian | 0.9% | 4,489 |
Harris +50Trump +50
952 precincts · 502,738 votes. Hover any precinct for its result.
The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1892–2024.
38 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 60.8%Harris305,635 | 37.4%Trump187,982 | 0.9%Oliver4,489 | 502,738 | ||
| D | 61.2%Biden328,151 | 37.2%Trump199,493 | 1.1%Jorgensen6,119 | 536,446 | ||
| D | 55.2%Clinton286,704 | 39.0%Trump202,434 | 3.2%Johnson16,677 | 519,686 | ||
| D | 56.0%Obama297,097 | 42.4%Romney224,742 | 1.1%Gray5,748 | 530,116 | ||
| D | 59.5%Obama333,123 | 39.6%McCain221,705 | 0.9%Nader5,026 | 559,854 | ||
| D | 54.4%Kerry295,284 | 45.1%Bush244,969 | 0.5%Badnarik2,730 | 542,983 | ||
| D | 51.5%Gore250,631 | 46.1%Bush224,689 | 1.7%Nader8,474 | 486,884 | ||
| D | 48.8%Clinton225,524 | 42.4%Dole196,096 | 7.5%Perot34,850 | 462,278 | ||
| D | 44.1%Clinton235,760 | 35.2%Bush188,285 | 20.4%Perot109,099 | 534,763 | ||
| R | 45.0%Dukakis216,534 | 54.7%Bush262,784 | 0.3%Fulani1,364 | 480,682 | ||
| R | 36.0%Mondale173,144 | 64.0%Reagan307,684 | 0.0% | 480,828 | ||
| R | 39.8%Carter192,796 | 54.4%Reagan263,518 | 5.9%Anderson28,517 | 484,831 | ||
| R | 43.5%Carter196,915 | 54.6%Ford246,988 | 1.9%McCarthy8,723 | 452,626 | ||
| R | 37.8%McGovern160,801 | 62.2%Nixon264,147 | 0.0% | 424,948 | ||
| R | 43.0%Humphrey165,786 | 46.8%Nixon180,355 | 10.2%Wallace39,234 | 385,375 | ||
| D | 61.3%Johnson213,658 | 38.7%Goldwater134,962 | 0.0% | 348,620 | ||
| D | 51.3%Kennedy166,508 | 48.7%Nixon157,992 | 0.0% | 324,500 | ||
| R | 46.9%Stevenson121,881 | 53.1%Eisenhower138,111 | 0.0% | 259,992 | ||
| R | 44.9%Stevenson95,457 | 55.0%Eisenhower116,821 | 0.1%Hallinan202 | 212,480 | ||
| R | 47.0%Truman62,684 | 52.2%Dewey69,592 | 0.8%Thurmond1,107 | 133,383 | ||
| R | 47.3%Roosevelt57,780 | 52.5%Dewey64,131 | 0.3%Thomas355 | 122,266 | ||
| R | 43.7%Roosevelt52,380 | 55.9%Willkie66,909 | 0.4%Thomas458 | 119,747 | ||
| D | 56.4%Roosevelt63,226 | 40.6%Landon45,541 | 3.0%Lemke3,333 | 112,100 | ||
| D | 60.1%Roosevelt59,044 | 36.5%Hoover35,872 | 3.4%Thomas3,341 | 98,257 | ||
| R | 44.1%Smith33,802 | 55.5%Hoover42,572 | 0.4%Thomas293 | 76,667 | ||
| R | 33.6%Davis16,075 | 55.8%Coolidge26,669 | 10.6%La Follette5,090 | 47,834 | ||
| R | 31.6%Cox12,438 | 63.6%Harding25,008 | 4.8%Debs1,896 | 39,342 | ||
| R | 36.7%Wilson7,587 | 60.4%Hughes12,485 | 2.9%Benson594 | 20,666 | ||
| R | 34.8%Wilson5,409 | 39.8%Taft6,177 | 25.4%Roosevelt3,940 | 15,526 | ||
| R | 29.5%Bryan4,522 | 66.4%Taft10,177 | 4.1%Debs627 | 15,326 | ||
| R | 27.0%Parker2,870 | 69.5%Roosevelt7,375 | 3.5%Debs374 | 10,619 | ||
| R | 36.5%Bryan3,864 | 61.8%McKinley6,537 | 1.6%Woolley172 | 10,573 | ||
| R | 35.1%Bryan3,403 | 64.1%McKinley6,210 | 0.8%Palmer76 | 9,689 | ||
| R | 41.3%Cleveland3,116 | 57.8%Harrison4,367 | 0.9%Weaver69 | 7,552 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −16.6% |
| 1896 | −29.0% |
| 1900 | −25.3% |
| 1904 | −42.4% |
| 1908 | −36.9% |
| 1912 | −4.9% |
| 1916 | −23.7% |
| 1920 | −32.0% |
| 1924 | −22.1% |
| 1928 | −11.4% |
| 1932 | +23.6% |
| 1936 | +15.8% |
| 1940 | −12.1% |
| 1944 | −5.2% |
| 1948 | −5.2% |
| 1952 | −10.1% |
| 1956 | −6.2% |
| 1960 | +2.6% |
| 1964 | +22.6% |
| 1968 | −3.8% |
| 1972 | −24.3% |
| 1976 | −11.1% |
| 1980 | −14.6% |
| 1984 | −28.0% |
| 1988 | −9.6% |
| 1992 | +8.9% |
| 1996 | +6.4% |
| 2000 | +5.3% |
| 2004 | +9.3% |
| 2008 | +19.9% |
| 2012 | +13.6% |
| 2016 | +16.2% |
| 2020 | +24.0% |
| 2024 | +23.4% |
DemocraticRepublican
voter registration
Registered voters
Total registered voters, over time
Registered voters
| Year | Total registered |
|---|---|
| 2016 | 767,843 |
| 2018 | 735,509 |
| 2020 | 761,058 |
| 2022 | 731,915 |
| 2024 | 747,304 |
Source: U.S. Election Assistance Commission (EAVS)
With over a million residents and a 23-point Democratic lean in 2024, St. Louis County functions as the state's largest counterweight to rural Republican dominance, shaped by a mix of inner-ring suburbs and diverse urban communities.
Across the recorded series it reached a Democratic high of 24.0 points in 2020 and a Republican high of 42.4 points in 1904. Between 2020 and 2024 the county moved 0.6 points toward the Republican candidate; the 2024 margin was 23.4 points.
A population of 995,569, a 61% non-Hispanic-white share, and a median household income of $82,936 describe the county. The county's voting pattern over the last decade is most similar to that of Gunnison County and Summit County.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
St. Louis County, Missouri. Akashic. https://akashic.app/county/29189/. Accessed May 20, 2026. License: CC BY 4.0.
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Cities & towns in St. Louis County
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Frequently asked questions
How did St. Louis County, Missouri vote in 2024?
In 2024, St. Louis County, Missouri voted Democratic by 23.4 points (D+23.4), carried by the Democratic candidate. Out of 502,738 votes cast, 305,635 went Democratic and 187,982 went Republican.
When did St. Louis County, Missouri last vote Republican?
The most recent presidential election in which St. Louis County, Missouri voted Republican was 1988.
How many people live in St. Louis County, Missouri?
St. Louis County, Missouri has a population of 995,569 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in St. Louis County, Missouri?
Median household income in St. Louis County, Missouri is $82,936 — above the national median of $80,734. The Missouri state median is $70,702.
What is the political history of St. Louis County, Missouri?
Akashic tracks 38 presidential elections in St. Louis County, Missouri from 1876 to 2024. Of those, 13 went Democratic and 21 went Republican.