Demographics & People — Nisland, South Dakota
Population Overview
| Population (Census) | 167 |
| Estimated 2026 | ~0 |
| Median Age | 39.8 |
| Total Households | 74 |
| Family Households | 50 |
| Average Household Size | 2.26 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 120 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 3 |
Heritage & Ancestry
| Group | Count |
| Other groups | 105 |
| German | 54 |
| Canadian | 47 |
| American | 44 |
| Norwegian | 33 |
| Welsh | 26 |
| Swiss | 26 |
| Irish | 23 |
| Unclassified or not reported | 13 |
| English | 12 |
Language
| English Only | 158 |
| Spanish | 0 |
| Population 5+ | 164 |
Veterans
| Veterans | 29 |
| Population 18+ | 177 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Nisland, South Dakota.