Demographics & People — Dillon, Montana
Population Overview
| Population (Census) | 4,020 |
| Estimated 2026 | ~4,200 |
| Median Age | 33.0 |
| Total Households | 1,646 |
| Family Households | 801 |
| Average Household Size | 2.18 |
| Diversity Index | 0.1084 (relatively homogeneous) |
Race & Ethnicity
| White | 3,696 |
| Black or African American | 54 |
| Asian | 16 |
| Hispanic or Latino | 152 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 915 |
| German | 887 |
| English | 623 |
| Other groups | 563 |
| Irish | 536 |
| Norwegian | 393 |
| American | 219 |
| Scottish | 167 |
| Swedish | 160 |
| Italian | 136 |
Language
| English Only | 3,656 |
| Spanish | 34 |
| Population 5+ | 3,789 |
Veterans
| Veterans | 316 |
| Population 18+ | 3,266 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Dillon, Montana.