Demographics & People — Oldham, South Dakota
Population Overview
| Population (Census) | 98 |
| Estimated 2026 | ~0 |
| Median Age | 59.8 |
| Total Households | 66 |
| Family Households | 17 |
| Average Household Size | 1.48 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 92 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 6 |
Heritage & Ancestry
| Group | Count |
| German | 51 |
| Irish | 32 |
| Unclassified or not reported | 24 |
| Dutch | 13 |
| Norwegian | 13 |
| Danish | 10 |
| Celtic | 4 |
| Welsh | 4 |
| English | 2 |
| Polish | 2 |
Language
| English Only | 91 |
| Spanish | 3 |
| Population 5+ | 94 |
Veterans
| Veterans | 9 |
| Population 18+ | 96 |
Commuting
| Mean Commute Time | 22.6 minutes |
| Work from Home | 16.0% |
| Commuter Profile | N/A |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Oldham, South Dakota.