Demographics & People — Onida, South Dakota
Population Overview
| Population (Census) | 658 |
|---|
| Estimated 2026 | ~600 |
|---|
| Median Age | 42.2 |
|---|
| Total Households | 279 |
|---|
| Family Households | 157 |
|---|
| Average Household Size | 2.36 |
|---|
| Diversity Index | N/A (N/A) |
|---|
Race & Ethnicity
| White | 622 |
|---|
| Black or African American | 16 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 0 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| German | 226 |
| Unclassified or not reported | 161 |
| English | 76 |
| Norwegian | 63 |
| American | 62 |
| Irish | 43 |
| Czech | 32 |
| Other groups | 17 |
| Swedish | 12 |
| Danish | 11 |
Language
| English Only | 592 |
|---|
| Spanish | 0 |
|---|
| Population 5+ | 599 |
|---|
Veterans
| Veterans | 21 |
|---|
| Population 18+ | 443 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Onida, South Dakota.
