Demographics & People — Martin City, Montana
Population Overview
| Population (Census) | 313 |
| Estimated 2026 | ~400 |
| Median Age | 70.3 |
| Total Households | 165 |
| Family Households | 121 |
| Average Household Size | 1.9 |
| Diversity Index | 0.0 (relatively homogeneous) |
Race & Ethnicity
| White | 306 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| German | 120 |
| Unclassified or not reported | 35 |
| Danish | 34 |
| English | 31 |
| Polish | 29 |
| Scottish | 28 |
| French (except Basque) | 26 |
| Swedish | 10 |
| Dutch | 10 |
| Norwegian | 9 |
Language
| English Only | 313 |
| Spanish | 0 |
| Population 5+ | 313 |
Veterans
| Veterans | 22 |
| Population 18+ | 286 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013 (county fallback). Data for Martin City, Montana.