Demographics & People — St. Thomas, North Dakota
Population Overview
| Population (Census) | 306 |
| Estimated 2026 | 306 |
| Median Age | 52.7 |
| Total Households | 159 |
| Family Households | 74 |
| Average Household Size | 1.92 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 252 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 65 |
Heritage & Ancestry
| Group | Count |
| Norwegian | 108 |
| Unclassified or not reported | 67 |
| German | 66 |
| Hispanic: Hispanic or Latino | 50 |
| Hispanic: Mexican | 45 |
| Polish | 40 |
| French (except Basque) | 31 |
| Irish | 28 |
| English | 21 |
| Other groups | 14 |
Language
| English Only | 263 |
| Spanish | 26 |
| Population 5+ | 290 |
Veterans
| Veterans | 33 |
| Population 18+ | 255 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for St. Thomas, North Dakota.