Demographics & People — Sinai, South Dakota
Population Overview
| Population (Census) | 220 |
|---|
| Estimated 2026 | ~200 |
|---|
| Median Age | 24.9 |
|---|
| Total Households | 76 |
|---|
| Family Households | 47 |
|---|
| Average Household Size | 2.89 |
|---|
| Diversity Index | N/A (N/A) |
|---|
Race & Ethnicity
| White | 202 |
|---|
| Black or African American | 0 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 19 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 87 |
| German | 51 |
| Norwegian | 19 |
| Other groups | 10 |
| Czech | 9 |
| Italian | 9 |
| Dutch | 9 |
| English | 8 |
| Hispanic: Hispanic or Latino | 8 |
| Irish | 7 |
Language
| English Only | 147 |
|---|
| Spanish | 7 |
|---|
| Population 5+ | 154 |
|---|
Veterans
| Veterans | 10 |
|---|
| Population 18+ | 101 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Sinai, South Dakota.
