Dewey County, South Dakota
AkashicDewey County, SDHarrisD+12.8
2024 precinct map of Dewey CountyPrecinct-level 2024 presidential results for Dewey 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 | 55.2% | 1,032 |
|---|---|---|
| Donald TrumpRepublican | 42.4% | 793 |
| Robert F KennedyIndependent | 2.3% | 43 |
Harris +50Trump +50
11 precincts · 1,871 votes. Hover any precinct for its result.
The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1912–2024.
38 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 55.2%Harris1,032 | 42.4%Trump793 | 2.3%Kennedy43 | 1,871 | ||
| D | 57.5%Biden1,131 | 40.2%Trump790 | 2.3%Jorgensen45 | 1,966 | ||
| D | 52.0%Clinton888 | 42.3%Trump723 | 4.2%Johnson71 | 1,708 | ||
| D | 63.7%Obama1,207 | 35.0%Romney663 | 1.3%Johnson25 | 1,895 | ||
| D | 65.8%Obama1,328 | 32.6%McCain659 | 1.6%Nader32 | 2,019 | ||
| D | 62.6%Kerry1,606 | 35.9%Bush921 | 1.4%Nader37 | 2,564 | ||
| D | 52.3%Gore880 | 45.3%Bush761 | 2.4% | 1,681 | ||
| D | 56.3%Clinton1,114 | 33.2%Dole657 | 9.9%Perot195 | 1,979 | ||
| D | 43.7%Clinton766 | 36.6%Bush642 | 19.4%Perot340 | 1,752 | ||
| D | 56.3%Dukakis1,007 | 42.8%Bush765 | 1.0%Paul17 | 1,789 | ||
| R | 44.7%Mondale772 | 54.5%Reagan941 | 0.8%Serrette14 | 1,727 | ||
| R | 34.0%Carter600 | 59.1%Reagan1,045 | 6.9%Anderson122 | 1,767 | ||
| R | 46.0%Carter706 | 53.5%Ford820 | 0.5%Macbride8 | 1,534 | ||
| R | 40.8%McGovern699 | 58.9%Nixon1,008 | 0.3%Schmitz5 | 1,712 | ||
| R | 40.4%Humphrey721 | 52.7%Nixon941 | 6.9%Wallace123 | 1,785 | ||
| D | 56.2%Johnson1,259 | 43.8%Goldwater981 | 0.0% | 2,240 | ||
| R | 47.2%Kennedy1,044 | 52.8%Nixon1,168 | 0.0% | 2,212 | ||
| R | 43.2%Stevenson912 | 56.8%Eisenhower1,197 | 0.0% | 2,109 | ||
| R | 33.7%Stevenson665 | 66.3%Eisenhower1,307 | 0.0% | 1,972 | ||
| R | 45.4%Truman733 | 53.6%Dewey865 | 0.9%Thurmond15 | 1,613 | ||
| R | 36.1%Roosevelt515 | 63.9%Dewey913 | 0.0% | 1,428 | ||
| R | 43.6%Roosevelt1,081 | 56.4%Willkie1,396 | 0.0% | 2,477 | ||
| D | 53.2%Roosevelt1,216 | 44.3%Landon1,012 | 2.6%Lemke59 | 2,287 | ||
| D | 68.6%Roosevelt1,608 | 30.3%Hoover710 | 1.1%Thomas26 | 2,344 | ||
| R | 43.6%Smith1,003 | 56.2%Hoover1,293 | 0.2%Thomas4 | 2,300 | ||
| R | 12.3%Davis222 | 53.1%Coolidge956 | 34.6%La Follette624 | 1,802 | ||
| R | 24.1%Cox335 | 63.3%Harding880 | 12.6%Debs175 | 1,390 | ||
| D | 50.6%Wilson379 | 47.0%Hughes352 | 2.4%Benson18 | 749 | ||
| O | 42.2%Wilson411 | 0.0%Taft0 | 57.8%Roosevelt563 | 974 | ||
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presidential history
Presidential margin, 1912–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1912 | +42.2% |
| 1916 | +3.6% |
| 1920 | −39.2% |
| 1924 | −40.7% |
| 1928 | −12.6% |
| 1932 | +38.3% |
| 1936 | +8.9% |
| 1940 | −12.7% |
| 1944 | −27.9% |
| 1948 | −8.2% |
| 1952 | −32.6% |
| 1956 | −13.5% |
| 1960 | −5.6% |
| 1964 | +12.4% |
| 1968 | −12.3% |
| 1972 | −18.0% |
| 1976 | −7.4% |
| 1980 | −25.2% |
| 1984 | −9.8% |
| 1988 | +13.5% |
| 1992 | +7.1% |
| 1996 | +23.1% |
| 2000 | +7.1% |
| 2004 | +26.7% |
| 2008 | +33.1% |
| 2012 | +28.7% |
| 2016 | +9.7% |
| 2020 | +17.3% |
| 2024 | +12.8% |
DemocraticRepublican
Dewey County's electorate is shaped by the Cheyenne River Sioux Reservation, which covers much of its land area and drives Democratic margins that stand out sharply in an otherwise deeply Republican state.
Across the recorded series it reached a Democratic high of 42.2 points in 1912 and a Republican high of 40.7 points in 1924. Between 2020 and 2024 the county moved 4.6 points toward the Republican candidate; the 2024 margin was 12.8 points.
A population of 5,205, a 21% non-Hispanic-white share, and a median household income of $54,104 describe the county. The county's voting pattern over the last decade is most similar to that of Bayfield County and Buffalo County.
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Compare two places, side by side
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Dewey County, South Dakota. Akashic. https://akashic.app/county/46041/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Dewey County, South Dakota vote in 2024?
In 2024, Dewey County, South Dakota voted Democratic by 12.8 points (D+12.8), carried by the Democratic candidate. Out of 1,871 votes cast, 1,032 went Democratic and 793 went Republican.
When did Dewey County, South Dakota last vote Republican?
The most recent presidential election in which Dewey County, South Dakota voted Republican was 1984.
How many people live in Dewey County, South Dakota?
Dewey County, South Dakota has a population of 5,205 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Dewey County, South Dakota?
Median household income in Dewey County, South Dakota is $54,104 — below the national median of $80,734. The South Dakota state median is $75,081.
What is the political history of Dewey County, South Dakota?
Akashic tracks 38 presidential elections in Dewey County, South Dakota from 1876 to 2024. Of those, 14 went Democratic and 14 went Republican.