| Donald Trump ✓Republican | 62.4% | 3,333 |
|---|---|---|
| Kamala HarrisDemocratic | 35.5% | 1,897 |
| OtherAll other candidates | 2.0% | 109 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −15.2% |
| 2012 | −20.9% |
| 2016 | −28.1% |
| 2020 | −23.6% |
| 2024 | −26.9% |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 35.5%Harris1,897 | 62.4%Trump3,333 | 2.0% | 5,339 | ||
| R | 36.8%Biden1,925 | 60.4%Trump3,162 | 2.8%incl. Jorgensen | 5,234 | ||
| R | 31.7%Clinton1,441 | 59.8%Trump2,716 | 8.5%incl. Johnson | 4,545 | ||
| R | 38.1%Obama1,777 | 59.0%Romney2,753 | 2.9% | 4,663 | ||
| R | 41.5%Obama2,094 | 56.7%McCain2,863 | 1.8% | 5,050 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | OttawaCity | KansasState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 89.6% | 76.0% | 61.0% |
| Black | 1.7% | 5.3% | 12.2% |
| Asian | 0.9% | 2.9% | 6.0% |
| Two or more races | 6.7% | 10.6% | 12.6% |
| Other race | 1.1% | 5.1% | 8.2% |
| Hispanic or Latino | 5.4% | 13.6% | 19.3% |
| Income & Age | |||
| Median household income | $71,699 | $74,275 | $84,427 |
| Poverty rate | 9.1% | 11.3% | 12.5% |
| Median age | 36.9 | 37.5 | 39.1 |
| Age 18–24 | 8.9% | 10.2% | 9.2% |
| Age 65 and older | 18.0% | 16.9% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 24.6% | 35.6% | 35.6% |
| Speaks a non-English language at home | 3.3% | 12.2% | 22.3% |
| Spanish | 1.9% | 8.1% | 13.6% |
| Ancestry | |||
| Largest ancestry | German 23.3% | German 23.3% | German 12.5% |
| 2nd-largest ancestry | Irish 13.9% | English 12.4% | Mexican 11.3% |
| 3rd-largest ancestry | English 12.8% | Irish 11.3% | English 9.5% |
| Religion | |||
| Catholic | 5.8%County context | 14.1% | 18.6% |
| Evangelical Protestant | 16.5%County context | 17.0% | 16.5% |
| Unaffiliated or unclaimed | 65.5%County context | 54.0% | 51.5% |
| Mainline Protestant | 9.4%County context | 10.0% | 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.
Ottawa sits in the Great Plains. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 28.1 points in 2016. Between 2020 and 2024 the city moved 3.3 points toward the Republican candidate; the 2024 margin was 26.9 points.
A population of 12,678, a 90% non-Hispanic-white share, and a median household income of $71,699 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 →
Ottawa, Kansas. Akashic. https://akashic.app/city/2053550/. Accessed May 20, 2026. License: CC BY 4.0.