There are 164 Addiction Treatment Centers in King County, Washington, serving a population of 2,118,119 people in an area of 2,115 square miles. There is 1 Addiction Treatment Center per 12,915 people, and 1 Addiction Treatment Center per 12 square miles.
In Washington, King County is ranked 20th of 39 counties in Addiction Treatment Centers per capita, and 1st of 39 counties in Addiction Treatment Centers per square mile.