Demographics & People — Seneca, Missouri
Population Overview
| Population (Census) | 1,938 |
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| Estimated 2026 | ~1,800 |
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| Median Age | 39.9 |
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| Total Households | 657 |
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| Family Households | 516 |
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| Average Household Size | 2.83 |
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| Diversity Index | 0.1507 (relatively homogeneous) |
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Race & Ethnicity
| White | 1,451 |
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| Black or African American | 0 |
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| Asian | 8 |
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| Hispanic or Latino | 121 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 707 |
| Unclassified or not reported | 548 |
| German | 319 |
| English | 209 |
| Irish | 198 |
| American | 184 |
| Dutch | 111 |
| French (except Basque) | 102 |
| Hispanic: Hispanic or Latino | 72 |
| Hispanic: Mexican | 54 |
Language
| English Only | 1,577 |
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| Spanish | 61 |
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| Population 5+ | 1,730 |
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Veterans
| Veterans | 127 |
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| Population 18+ | 1,511 |
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Commuting
| Mean Commute Time | 22.7 minutes |
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| Work from Home | 7.1% |
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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 Seneca, Missouri.
