Campbell County, South Dakota
| Donald Trump ✓Republican | 84.4% | 706 |
|---|---|---|
| Kamala HarrisDemocratic | 14.4% | 120 |
| Chase OliverLibertarian | 0.6% | 5 |
| Year | Margin (D minus R) |
|---|---|
| 1892 | −46.6% |
| 1896 | −9.7% |
| 1900 | −42.3% |
| 1904 | −68.5% |
| 1908 | −54.2% |
| 1912 | +19.6% |
| 1916 | −57.8% |
| 1920 | −67.0% |
| 1924 | −50.6% |
| 1928 | −38.9% |
| 1932 | +18.2% |
| 1936 | −24.7% |
| 1940 | −61.3% |
| 1944 | −66.9% |
| 1948 | −57.0% |
| 1952 | −80.3% |
| 1956 | −62.9% |
| 1960 | −57.2% |
| 1964 | −47.7% |
| 1968 | −63.3% |
| 1972 | −52.6% |
| 1976 | −29.3% |
| 1980 | −72.7% |
| 1984 | −65.4% |
| 1988 | −45.9% |
| 1992 | −33.4% |
| 1996 | −43.4% |
| 2000 | −64.6% |
| 2004 | −48.9% |
| 2008 | −40.7% |
| 2012 | −58.8% |
| 2016 | −72.1% |
| 2020 | −72.2% |
| 2024 | −70.1% |
Campbell County's 2024 presidential margin of R+70.1 ranks it among the most one-sided jurisdictions in the country, a reflection of the deeply rural, agriculture-dependent character that defines this sparsely populated corner of north-central South Dakota.
Across the recorded series it reached a Democratic high of 19.6 points in 1912 and a Republican high of 80.3 points in 1952. Between 2020 and 2024 the county moved 2.1 points toward the Democratic candidate; the 2024 margin was 70.1 points.
A population of 1,593, a 89% non-Hispanic-white share, and a median household income of $68,929 describe the county. The county's voting pattern over the last decade is most similar to that of Keya Paha County and Frontier County.
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Campbell County, South Dakota. Akashic. https://akashic.app/county/46021/. Accessed May 20, 2026. License: CC BY 4.0.