King County is a county located in the U.S. state of Washington. The population was 2,269,675 in the 2020 census, making it the most populous county in Washington, and the 13th-most populous in the United States. The county seat is Seattle, also the state's most populous city.
- Country
- United States
- Headquarters
- Seattle
- Inception
- December 22, 1852
- Website
- https://kingcounty.gov
