Custer County, South Dakota
| Donald Trump ✓Republican | 71.9% | 4,313 |
|---|---|---|
| Kamala HarrisDemocratic | 26.1% | 1,567 |
| Robert F KennedyIndependent | 1.4% | 85 |
| Year | Margin (D minus R) |
|---|---|
| 1892 | −33.0% |
| 1896 | +9.1% |
| 1900 | −7.5% |
| 1904 | −37.7% |
| 1908 | −6.0% |
| 1912 | +45.9% |
| 1916 | +10.3% |
| 1920 | −31.1% |
| 1924 | −38.2% |
| 1928 | −34.2% |
| 1932 | +22.2% |
| 1936 | +5.3% |
| 1940 | −21.9% |
| 1944 | −28.8% |
| 1948 | −14.0% |
| 1952 | −45.1% |
| 1956 | −27.9% |
| 1960 | −27.2% |
| 1964 | +1.5% |
| 1968 | −20.2% |
| 1972 | −29.6% |
| 1976 | −15.7% |
| 1980 | −45.7% |
| 1984 | −43.3% |
| 1988 | −20.6% |
| 1992 | −10.2% |
| 1996 | −18.4% |
| 2000 | −43.1% |
| 2004 | −38.3% |
| 2008 | −31.8% |
| 2012 | −38.2% |
| 2016 | −46.0% |
| 2020 | −42.4% |
| 2024 | −45.8% |
Custer County's economy revolves around tourism, forestry, and ranching in the Black Hills, producing one of South Dakota's most lopsided Republican presidential margins — a pattern consistent across the past several election cycles.
Across the recorded series it reached a Democratic high of 45.9 points in 1912 and a Republican high of 46.0 points in 2016. Between 2020 and 2024 the county moved 3.3 points toward the Republican candidate; the 2024 margin was 45.8 points.
A population of 8,892, a 88% non-Hispanic-white share, and a median household income of $84,112 describe the county. The county's voting pattern over the last decade is most similar to that of Idaho County and Washakie County.
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Custer County, South Dakota. Akashic. https://akashic.app/county/46033/. Accessed May 20, 2026. License: CC BY 4.0.