Washington County on the map of Oregon 2024. Cities, roads, borders and directions in Washington County of Oregon.

Washington County is situated in the northwestern area of Oregon. This wonderful county is named after George Washington. The area of Washington County is about 724 square miles. This county, created in 1843, is populated today by 601 thousand residents. Hillsboro is the county seat of Washington County. This map shows the borders of Washington County as well as neighboring counties, including major highways and natural objecsts as of 2024. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of Washington County.