Federal Way city, Washington
Official LSAD Designation: Federal Way city • Census GEOID: 5323515
• King County
Demographics & Population Profile
Population and demographics for Federal Way city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 99,729 | — | 2025 | Census |
| Median Age | 37.4 yrs | ±1 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 35,717 | ±804 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).