Demographics & People — Roslyn, South Dakota
Population Overview
| Population (Census) | 174 |
| Estimated 2026 | ~100 |
| Median Age | 53.1 |
| Total Households | 65 |
| Family Households | 38 |
| Average Household Size | 2.03 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 134 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| German | 73 |
| Norwegian | 56 |
| Polish | 28 |
| Unclassified or not reported | 25 |
| Scandinavian | 19 |
| Other groups | 17 |
| American | 11 |
| Irish | 8 |
| Danish | 6 |
| Scotch-Irish | 5 |
Language
| English Only | 161 |
| Spanish | 0 |
| Population 5+ | 162 |
Veterans
| Veterans | 11 |
| Population 18+ | 149 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Roslyn, South Dakota.