Codington County, South Dakota
| Donald Trump ✓Republican | 69.2% | 9,349 |
|---|---|---|
| Kamala HarrisDemocratic | 28.4% | 3,840 |
| Robert F KennedyIndependent | 1.7% | 233 |
| Year | Margin (D minus R) |
|---|---|
| 1892 | −28.0% |
| 1896 | −15.5% |
| 1900 | −20.0% |
| 1904 | −48.1% |
| 1908 | −30.8% |
| 1912 | +45.0% |
| 1916 | −6.9% |
| 1920 | −40.7% |
| 1924 | −27.4% |
| 1928 | −6.5% |
| 1932 | +30.7% |
| 1936 | +16.4% |
| 1940 | −7.7% |
| 1944 | −3.5% |
| 1948 | +9.3% |
| 1952 | −31.8% |
| 1956 | −15.4% |
| 1960 | −10.5% |
| 1964 | +19.7% |
| 1968 | +3.6% |
| 1972 | −3.5% |
| 1976 | +1.9% |
| 1980 | −25.5% |
| 1984 | −26.7% |
| 1988 | −4.9% |
| 1992 | −2.2% |
| 1996 | −2.5% |
| 2000 | −22.7% |
| 2004 | −23.3% |
| 2008 | −6.4% |
| 2012 | −18.3% |
| 2016 | −39.3% |
| 2020 | −38.9% |
| 2024 | −40.8% |
Codington County anchors South Dakota's northeastern lake district, and its small-city core of Watertown hasn't softened a Republican lean that has held above 40 points in recent presidential cycles.
Across the recorded series it reached a Democratic high of 45.0 points in 1912 and a Republican high of 48.1 points in 1904. Between 2020 and 2024 the county moved 1.9 points toward the Republican candidate; the 2024 margin was 40.8 points.
A population of 28,767, a 90% non-Hispanic-white share, and a median household income of $72,727 describe the county. The county's voting pattern over the last decade is most similar to that of Yankton County and Griggs County.
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Codington County, South Dakota. Akashic. https://akashic.app/county/46029/. Accessed May 20, 2026. License: CC BY 4.0.