Demographics & People — Marrowstone, Washington
Population Overview
| Population (Census) | 982 |
| Estimated 2026 | ~1,700 |
| Median Age | 62.5 |
| Total Households | 452 |
| Family Households | 298 |
| Average Household Size | 2.17 |
| Diversity Index | 0.0185 (relatively homogeneous) |
Race & Ethnicity
| White | 953 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 9 |
Heritage & Ancestry
| Group | Count |
| German | 236 |
| Unclassified or not reported | 159 |
| Other groups | 149 |
| English | 114 |
| Swedish | 86 |
| Danish | 82 |
| Irish | 65 |
| Scandinavian | 48 |
| Polish | 45 |
| European | 43 |
Language
| English Only | 903 |
| Spanish | 0 |
| Population 5+ | 947 |
Veterans
| Veterans | 103 |
| Population 18+ | 816 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Marrowstone, Washington.