Demographics & People — Sisseton, South Dakota
Population Overview
| Population (Census) | 2,593 |
| Estimated 2026 | ~2,900 |
| Median Age | 34.2 |
| Total Households | 986 |
| Family Households | 554 |
| Average Household Size | 2.56 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 1,159 |
| Black or African American | 15 |
| Asian | 6 |
| Hispanic or Latino | 120 |
Heritage & Ancestry
| Group | Count |
| Other groups | 1,236 |
| German | 446 |
| Unclassified or not reported | 422 |
| Norwegian | 348 |
| Swedish | 77 |
| Irish | 76 |
| Hispanic: Hispanic or Latino | 40 |
| French (except Basque) | 31 |
| Scandinavian | 28 |
| Hungarian | 26 |
Language
| English Only | 2,264 |
| Spanish | 7 |
| Population 5+ | 2,344 |
Veterans
| Veterans | 145 |
| Population 18+ | 1,812 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Sisseton, South Dakota.