Demographics & People — Johnson Siding, South Dakota
Population Overview
| Population (Census) | 671 |
| Estimated 2026 | ~800 |
| Median Age | 52.7 |
| Total Households | 282 |
| Family Households | 211 |
| Average Household Size | 2.38 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 597 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| German | 325 |
| Unclassified or not reported | 133 |
| Irish | 112 |
| Italian | 86 |
| Norwegian | 75 |
| English | 48 |
| Swedish | 41 |
| Other groups | 30 |
| French (except Basque) | 29 |
| Finnish | 17 |
Language
| English Only | 584 |
| Spanish | 0 |
| Population 5+ | 653 |
Veterans
| Veterans | 61 |
| Population 18+ | 513 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Johnson Siding, South Dakota.