Demographics & People — Martinsburg, Missouri
Population Overview
| Population (Census) | 582 |
| Estimated 2026 | ~400 |
| Median Age | 39.6 |
| Total Households | 214 |
| Family Households | 154 |
| Average Household Size | 2.72 |
| Diversity Index | 0.0377 (relatively homogeneous) |
Race & Ethnicity
| White | 564 |
| Black or African American | 6 |
| Asian | 0 |
| Hispanic or Latino | 5 |
Heritage & Ancestry
| Group | Count |
| German | 328 |
| Unclassified or not reported | 188 |
| Irish | 40 |
| English | 16 |
| American | 15 |
| Other groups | 13 |
| French (except Basque) | 5 |
| Hungarian | 3 |
| European | 2 |
| Norwegian | 2 |
Language
| English Only | 572 |
| Spanish | 1 |
| Population 5+ | 573 |
Veterans
| Veterans | 20 |
| Population 18+ | 382 |
Commuting
| Mean Commute Time | 14.4 minutes |
| Work from Home | 4.8% |
| Commuter Profile | N/A |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Martinsburg, Missouri.