Demographics & People — St. John, Missouri
Population Overview
| Population (Census) | 6,562 |
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| Estimated 2026 | ~6,400 |
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| Median Age | 36.0 |
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| Total Households | 2,827 |
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| Family Households | 1,800 |
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| Average Household Size | 2.3 |
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| Diversity Index | 0.6364 (highly diverse) |
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Race & Ethnicity
| White | 2,715 |
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| Black or African American | 2,474 |
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| Asian | 145 |
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| Hispanic or Latino | 971 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 2,769 |
| Unclassified or not reported | 1,633 |
| Hispanic: Hispanic or Latino | 723 |
| Hispanic: Mexican | 645 |
| German | 605 |
| Irish | 574 |
| English | 490 |
| American | 372 |
| European | 217 |
| Subsaharan African | 153 |
Language
| English Only | 4,999 |
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| Spanish | 992 |
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| Population 5+ | 6,212 |
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Veterans
| Veterans | 400 |
|---|
| Population 18+ | 5,368 |
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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 St. John, Missouri.
