| Donald Trump ✓Republican | 81.8% | 3,418 |
|---|---|---|
| Kamala HarrisDemocratic | 15.8% | 660 |
| OtherAll other candidates | 2.4% | 99 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −68.6% |
| 2012 | −75.2% |
| 2016 | −69.4% |
| 2020 | −64.7% |
| 2024 | −66.0% |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 15.8%Harris660 | 81.8%Trump3,418 | 2.4% | 4,177 | ||
| R | 16.2%Biden643 | 80.8%Trump3,215 | 3.0%incl. Jorgensen | 3,977 | ||
| R | 11.1%Clinton438 | 80.4%Trump3,179 | 8.5%incl. Johnson | 3,952 | ||
| R | 12.4%Obama405 | 87.6%Romney2,865 | 0.0% | 3,270 | ||
| R | 15.0%Obama480 | 83.5%McCain2,675 | 1.5% | 3,202 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | Sioux CenterCity | IowaState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 83.4% | 84.2% | 61.0% |
| Black | 0.6% | 3.9% | 12.2% |
| Asian | 1.2% | 2.5% | 6.0% |
| Two or more races | 2.3% | 6.6% | 12.6% |
| Other race | 12.4% | 2.9% | 8.2% |
| Hispanic or Latino | 12.8% | 7.3% | 19.3% |
| Income & Age | |||
| Median household income | $92,983 | $75,059 | $84,427 |
| Poverty rate | 2.2% | 11.1% | 12.5% |
| Median age | 30 | 38.8 | 39.1 |
| Age 18–24 | 13.5% | 10.0% | 9.2% |
| Age 65 and older | 16.2% | 18.1% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 30.6% | 31.8% | 35.6% |
| Speaks a non-English language at home | 12.5% | 9.2% | 22.3% |
| Spanish | 11.1% | 4.7% | 13.6% |
| Ancestry | |||
| Largest ancestry | German 21.5% | German 30.5% | German 12.5% |
| 2nd-largest ancestry | American 6.1% | Irish 12.8% | English 9.5% |
| 3rd-largest ancestry | Irish 4.5% | English 10.2% | Irish 9.4% |
| Religion | |||
| Catholic | 9.2%County context | 14.7% | 18.6% |
| Evangelical Protestant | 30.3%County context | 10.9% | 16.5% |
| Unaffiliated or unclaimed | 25.4%County context | 55.2% | 51.5% |
| Mainline Protestant | 35.1%County context | 15.8% | 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.
Sioux Center sits in the Corn Belt. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 75.2 points in 2012. Between 2020 and 2024 the city moved 1.4 points toward the Republican candidate; the 2024 margin was 66.0 points.
A population of 8,454, a 83% non-Hispanic-white share, and a median household income of $92,983 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 →
Sioux Center, Iowa. Akashic. https://akashic.app/city/1973290/. Accessed May 20, 2026. License: CC BY 4.0.