Demographics & People — Swan Lake, Montana
Population Overview
| Population (Census) | 226 |
| Estimated 2026 | ~200 |
| Median Age | 58.4 |
| Total Households | 85 |
| Family Households | 56 |
| Average Household Size | 2.51 |
| Diversity Index | 0.0177 (relatively homogeneous) |
Race & Ethnicity
| White | 222 |
| Black or African American | 0 |
| Asian | 2 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| Irish | 63 |
| English | 45 |
| German | 41 |
| Unclassified or not reported | 32 |
| Norwegian | 28 |
| French (except Basque) | 18 |
| Austrian | 13 |
| Italian | 13 |
| Scottish | 12 |
| American | 8 |
Language
| English Only | 202 |
| Spanish | 0 |
| Population 5+ | 204 |
Veterans
| Veterans | 32 |
| Population 18+ | 189 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Swan Lake, Montana.