St. Mary's County, Maryland
AkashicSt. Mary's County, MDTrumpR+17.0
2024 precinct map of St. Mary's CountyPrecinct-level 2024 presidential results for St. Mary's 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
| Donald Trump ✓Republican | 57.0% | 33,582 |
|---|---|---|
| Kamala HarrisDemocratic | 39.9% | 23,531 |
| Robert F Kennedy Jr.Independent | 1.1% | 669 |
Harris +50Trump +50
27 precincts · 58,954 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 |
|---|---|---|---|---|---|---|
| R | 39.9%Harris23,531 | 57.0%Trump33,582 | 1.1%Kennedy669 | 58,954 | ||
| R | 41.6%Biden23,138 | 55.4%Trump30,826 | 2.0%Jorgensen1,112 | 55,665 | ||
| R | 35.8%Clinton17,534 | 58.5%Trump28,663 | 1.0%Stein507 | 48,975 | ||
| R | 41.2%Obama19,711 | 56.0%Romney26,797 | 2.8%Johnson1,316 | 47,824 | ||
| R | 42.8%Obama19,023 | 55.6%McCain24,705 | 1.5%Nader681 | 44,409 | ||
| R | 36.3%Kerry13,776 | 62.6%Bush23,725 | 1.1%Nader415 | 37,916 | ||
| R | 40.4%Gore11,912 | 57.1%Bush16,856 | 1.9%Nader568 | 29,501 | ||
| R | 42.0%Clinton9,988 | 49.7%Dole11,835 | 7.7%Perot1,827 | 23,808 | ||
| R | 35.6%Clinton8,931 | 45.8%Bush11,485 | 18.1%Perot4,550 | 25,085 | ||
| R | 36.6%Dukakis7,434 | 62.9%Bush12,767 | 0.4%Paul89 | 20,290 | ||
| R | 36.3%Mondale6,420 | 63.4%Reagan11,201 | 0.3%Bergland49 | 17,670 | ||
| R | 42.2%Carter6,773 | 51.5%Reagan8,267 | 6.3%Anderson1,016 | 16,056 | ||
| D | 56.2%Carter7,227 | 43.8%Ford5,640 | 0.0% | 12,867 | ||
| R | 31.4%McGovern3,571 | 67.6%Nixon7,689 | 1.1%Schmitz122 | 11,382 | ||
| R | 35.7%Humphrey3,280 | 36.5%Nixon3,348 | 27.8%Wallace2,547 | 9,175 | ||
| D | 67.0%Johnson5,831 | 33.0%Goldwater2,878 | 0.0% | 8,709 | ||
| D | 65.1%Kennedy5,752 | 34.9%Nixon3,080 | 0.0% | 8,832 | ||
| R | 44.3%Stevenson3,443 | 55.7%Eisenhower4,336 | 0.0% | 7,779 | ||
| R | 45.5%Stevenson3,588 | 54.1%Eisenhower4,270 | 0.4%Hallinan33 | 7,891 | ||
| D | 49.8%Truman2,293 | 48.8%Dewey2,247 | 1.4%Thurmond66 | 4,606 | ||
| R | 41.4%Roosevelt1,891 | 58.6%Dewey2,673 | 0.0% | 4,564 | ||
| D | 54.9%Roosevelt2,860 | 44.2%Willkie2,301 | 0.8%Thomas44 | 5,205 | ||
| D | 54.0%Roosevelt2,829 | 43.6%Landon2,286 | 2.4%Lemke124 | 5,239 | ||
| D | 67.1%Roosevelt2,885 | 30.7%Hoover1,322 | 2.2%Thomas93 | 4,300 | ||
| D | 63.5%Smith3,006 | 34.0%Hoover1,609 | 2.5%Thomas118 | 4,733 | ||
| D | 52.6%Davis1,949 | 44.6%Coolidge1,653 | 2.7%La Follette101 | 3,703 | ||
| R | 45.5%Cox1,861 | 53.1%Harding2,175 | 1.4%Debs58 | 4,094 | ||
| D | 55.3%Wilson1,443 | 40.8%Hughes1,064 | 4.0%Benson104 | 2,611 | ||
| — | 157.1%Wilson3,669 | 54.0%Taft1,262 | 0.0% | 2,336 | ||
| — | 2797.7%Bryan3,637 | 1251.5%Taft1,627 | 0.0% | 130 | ||
| — | 2853.0%Parker5,221 | 1024.0%Roosevelt1,874 | 0.0% | 183 | ||
| — | 6112.1%Bryan2,017 | 8651.5%McKinley2,855 | 0.0% | 33 | ||
| R | 40.0%Bryan2,084 | 50.8%McKinley2,646 | 9.2%Palmer479 | 5,209 | ||
| R | 41.0%Cleveland1,638 | 45.6%Harrison1,819 | 13.4%Weaver534 | 3,991 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −4.5% |
| 1896 | −10.8% |
| 1900 | No data |
| 1904 | No data |
| 1908 | No data |
| 1912 | No data |
| 1916 | +14.5% |
| 1920 | −7.7% |
| 1924 | +8.0% |
| 1928 | +29.5% |
| 1932 | +36.3% |
| 1936 | +10.4% |
| 1940 | +10.7% |
| 1944 | −17.1% |
| 1948 | +1.0% |
| 1952 | −8.6% |
| 1956 | −11.5% |
| 1960 | +30.3% |
| 1964 | +33.9% |
| 1968 | −0.7% |
| 1972 | −36.2% |
| 1976 | +12.3% |
| 1980 | −9.3% |
| 1984 | −27.1% |
| 1988 | −26.3% |
| 1992 | −10.2% |
| 1996 | −7.8% |
| 2000 | −16.8% |
| 2004 | −26.2% |
| 2008 | −12.8% |
| 2012 | −14.8% |
| 2016 | −22.7% |
| 2020 | −13.8% |
| 2024 | −17.0% |
DemocraticRepublican
Home to one of the Navy's premier flight test centers, St. Mary's combines a substantial military and federal-contractor workforce with rural Southern Maryland demographics that have trended steadily Republican over the past two decades.
Across the recorded series it reached a Democratic high of 36.3 points in 1932 and a Republican high of 36.2 points in 1972. Between 2020 and 2024 the county moved 3.2 points toward the Republican candidate; the 2024 margin was 17.0 points.
A population of 115,126, a 70% non-Hispanic-white share, and a median household income of $119,446 describe the county. The county's voting pattern over the last decade is most similar to that of Washington County and Montour County.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
St. Mary's County, Maryland. Akashic. https://akashic.app/county/24037/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did St. Mary's County, Maryland vote in 2024?
In 2024, St. Mary's County, Maryland voted Republican by 17.0 points (R+17.0), carried by the Republican candidate. Out of 58,954 votes cast, 23,531 went Democratic and 33,582 went Republican.
When did St. Mary's County, Maryland last vote Democratic?
The most recent presidential election in which St. Mary's County, Maryland voted Democratic was 1976.
How many people live in St. Mary's County, Maryland?
St. Mary's County, Maryland has a population of 115,126 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in St. Mary's County, Maryland?
Median household income in St. Mary's County, Maryland is $119,446 — above the national median of $80,734. The Maryland state median is $103,678.
What is the political history of St. Mary's County, Maryland?
Akashic tracks 38 presidential elections in St. Mary's County, Maryland from 1876 to 2024. Of those, 10 went Democratic and 20 went Republican.