Washington County, Oregon
Washington County is a county in Oregon with an estimated population of 598,865 in 2023. 12 cities, towns and Census places in it are indexed here.
Largest places in Washington County
Hillsboro 107,730Beaverton 96,945Tigard 55,590Tualatin 27,383Forest Grove 26,799Sherwood 19,957Cornelius 14,981King City 4,968North Plains 3,378Durham 1,860Banks 1,807Gaston 667
About Washington County
Washington County is one of the counties of Oregon. County governments in Oregon handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.