Seattle city, Washington
Official LSAD Designation: Seattle city • Census GEOID: 5363000
• King County
Demographics & Population Profile
Population and demographics for Seattle city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 784,777 | — | 2025 | Census |
| Median Age | 35.6 yrs | ±0.2 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 363,466 | ±2,041 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).