King County, Washington
King County is a county located in the State of Washington. As of the 2010 census its population was 1,931,249. King is the most populous county in Washington, and the 13th most populous in the United States.The county seat is Seattle, which is the state's largest city. About two-thirds of the county's population lives in the city's suburbs. As of 2011 King County was the 86th highest-income county in the United States.