Demographics & People — Eureka, South Dakota
Population Overview
| Population (Census) | 946 |
|---|
| Estimated 2026 | ~500 |
|---|
| Median Age | 63.1 |
|---|
| Total Households | 416 |
|---|
| Family Households | 207 |
|---|
| Average Household Size | 2.05 |
|---|
| Diversity Index | N/A (N/A) |
|---|
Race & Ethnicity
| White | 881 |
|---|
| Black or African American | 38 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 4 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| German | 519 |
| Russian | 131 |
| Unclassified or not reported | 110 |
| Irish | 101 |
| Swedish | 81 |
| Norwegian | 67 |
| Other groups | 66 |
| English | 38 |
| American | 31 |
| Danish | 18 |
Language
| English Only | 827 |
|---|
| Spanish | 6 |
|---|
| Population 5+ | 913 |
|---|
Veterans
| Veterans | 96 |
|---|
| Population 18+ | 754 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Eureka, South Dakota.
