Washington Counties

Washington has 39 counties. The largest is King County (2.3 million people) and the smallest is Garfield County (2,310). Median home values run from $253K in Garfield County to $890K in San Juan County (Zillow ZHVI 2024). Effective property tax rates range from 0.59% in San Juan County to 0.98% in Pierce County (Tax Foundation 2023). Median household income is highest in King County ($116K) and lowest in Whitman County ($49K) (Census ACS 2022). Pick a county below for its full profile, or open the county map to filter by your own ranges.