Demographics & People — Seeley Lake, Montana
Population Overview
| Population (Census) | 1,335 |
| Estimated 2026 | ~2,000 |
| Median Age | 62.3 |
| Total Households | 715 |
| Family Households | 346 |
| Average Household Size | 1.87 |
| Diversity Index | 0.0572 (relatively homogeneous) |
Race & Ethnicity
| White | 1,218 |
| Black or African American | 0 |
| Asian | 37 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| German | 329 |
| Irish | 295 |
| American | 219 |
| English | 204 |
| Norwegian | 192 |
| Other groups | 167 |
| Scottish | 152 |
| Unclassified or not reported | 80 |
| Polish | 77 |
| Scotch-Irish | 64 |
Language
| English Only | 1,192 |
| Spanish | 47 |
| Population 5+ | 1,284 |
Veterans
| Veterans | 224 |
| Population 18+ | 1,418 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Seeley Lake, Montana.