| Donald Trump ✓Republican | 57.3% | 1,588 |
|---|---|---|
| Kamala HarrisDemocratic | 40.3% | 1,116 |
| OtherAll other candidates | 2.3% | 65 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | +4.4% |
| 2012 | −11.1% |
| 2016 | −17.2% |
| 2020 | −13.3% |
| 2024 | −17.0% |
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 1,116 | 1,588 | 2,769 | ||
| R | 1,201 | 1,582 | 2,858 | ||
| R | 1,578 | 2,296 | 4,180 | ||
| R | 1,521 | 1,913 | 3,539 | ||
| D | 1,816 | 1,658 | 3,552 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | MadisonCity | South DakotaState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 94.5% | 80.7% | 61.0% |
| Black | 1.3% | 2.2% | 12.2% |
| Asian | 0.8% | 1.4% | 6.0% |
| Two or more races | 2.1% | 6.5% | 12.6% |
| Other race | 1.0% | 9.2% | 8.2% |
| Hispanic or Latino | 4.3% | 4.8% | 19.3% |
| Income & Age | |||
| Median household income | $65,593 | $75,081 | $84,427 |
| Poverty rate | 9.5% | 12.0% | 12.5% |
| Median age | 40.1 | 38.2 | 39.1 |
| Age 18–24 | 10.4% | 9.2% | 9.2% |
| Age 65 and older | 24.3% | 18.0% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 34.3% | 31.9% | 35.7% |
| Speaks a non-English language at home | 4.0% | 7.1% | 22.3% |
| Russian, Polish, or other Slavic | 1.3% | 0.4% | 0.7% |
| German or other West Germanic | 1.0% | 0.8% | 0.5% |
| Ancestry | |||
| Largest ancestry | German 36.4% | German 33.1% | German 12.5% |
| 2nd-largest ancestry | Irish 12.4% | Irish 9.9% | English 9.5% |
| 3rd-largest ancestry | English 8.5% | English 7.7% | Irish 9.4% |
| Religion | |||
| Catholic | 13.7%County context | 14.8% | 18.6% |
| Evangelical Protestant | 12.6%County context | 20.1% | 16.5% |
| Unaffiliated or unclaimed | 40.1%County context | 44.9% | 51.5% |
| Mainline Protestant | 31.5%County context | 18.0% | 5.2% |
ACS values are survey estimates and may include margins of error.
Religion data may be available only at county or larger geographies. Sub-county values are labeled when inherited, modeled, or contextual.
Madison sits in the Northern Plains. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 4.4 points in 2008 and a Republican high of 17.2 points in 2016. Between 2020 and 2024 the city moved 3.7 points toward the Republican candidate; the 2024 margin was 17.0 points.
A population of 6,094, a 95% non-Hispanic-white share, and a median household income of $65,593 describe the city.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Madison, South Dakota. Akashic. https://akashic.app/city/4640220/. Accessed May 20, 2026. License: CC BY 4.0.