Demographics & People — Ottawa, Kansas
Population Overview
| Population (Census) | 12,632 |
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| Estimated 2026 | ~12,800 |
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| Median Age | 36.9 |
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| Total Households | 5,134 |
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| Family Households | 3,217 |
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| Average Household Size | 2.36 |
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| Diversity Index | 0.128 (relatively homogeneous) |
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Race & Ethnicity
| White | 11,427 |
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| Black or African American | 174 |
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| Asian | 135 |
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| Hispanic or Latino | 516 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 3,915 |
| German | 2,885 |
| Other groups | 2,501 |
| Irish | 1,514 |
| English | 1,479 |
| American | 1,098 |
| Hispanic: Hispanic or Latino | 586 |
| Hispanic: Mexican | 504 |
| European | 359 |
| French (except Basque) | 275 |
Language
| English Only | 11,735 |
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| Spanish | 157 |
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| Population 5+ | 12,015 |
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Veterans
| Veterans | 885 |
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| Population 18+ | 9,589 |
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Commuting
| Mean Commute Time | 20.2 minutes |
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| Work from Home | 9.6% |
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| Commuter Profile | N/A |
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Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Ottawa, Kansas.
