Coulee Dam town, Washington
Official LSAD Designation: Coulee Dam town • Census GEOID: 5315115
• Douglas County / Grant County / Okanogan County
Demographics & Population Profile
Population and demographics for Coulee Dam town.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 1,241 | — | 2025 | Census |
| Median Age | 38 yrs | ±5.2 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 659 | ±102 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).