Demographics & People — Custer, South Dakota
Population Overview
| Population (Census) | 2,148 |
| Estimated 2026 | ~2,900 |
| Median Age | 51.2 |
| Total Households | 1,031 |
| Family Households | 687 |
| Average Household Size | 1.96 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 1,912 |
| Black or African American | 0 |
| Asian | 22 |
| Hispanic or Latino | 41 |
Heritage & Ancestry
| Group | Count |
| German | 696 |
| Irish | 416 |
| Unclassified or not reported | 366 |
| English | 232 |
| Other groups | 201 |
| Norwegian | 184 |
| Swedish | 114 |
| American | 67 |
| European | 65 |
| Hispanic: Mexican | 55 |
Language
| English Only | 1,971 |
| Spanish | 38 |
| Population 5+ | 2,068 |
Veterans
| Veterans | 283 |
| Population 18+ | 1,782 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Custer, South Dakota.