Demographics & People — Grand Coulee, Washington
Population Overview
| Population (Census) | 977 |
| Estimated 2026 | ~800 |
| Median Age | 47.2 |
| Total Households | 497 |
| Family Households | 268 |
| Average Household Size | 1.92 |
| Diversity Index | 0.2707 (somewhat diverse) |
Race & Ethnicity
| White | 724 |
| Black or African American | 10 |
| Asian | 3 |
| Hispanic or Latino | 123 |
Heritage & Ancestry
| Group | Count |
| American | 280 |
| Other groups | 220 |
| Unclassified or not reported | 171 |
| German | 157 |
| Irish | 104 |
| Hispanic: Hispanic or Latino | 97 |
| Norwegian | 73 |
| Hispanic: Mexican | 73 |
| English | 44 |
| Scotch-Irish | 38 |
Language
| English Only | 847 |
| Spanish | 78 |
| Population 5+ | 956 |
Veterans
| Veterans | 146 |
| Population 18+ | 923 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Grand Coulee, Washington.