Washington County, County in northwestern Oregon, United States.
Washington County sits in northwestern Oregon and includes urban centers, farmland, and the valley of the Tualatin River. Sixteen towns spread across a region that ranges from wooded hills to flat fields.
The administrative unit began as Twality District in 1843 and was among the first organized areas in Oregon Territory. Its current name was adopted in 1849 after further settlement of the region.
The area takes its name from George Washington, adopted in the mid-1800s. Technology companies now shape the landscape alongside farms that have been here for generations.
Hillsboro acts as the county seat and provides orientation for travelers exploring the different towns. Highways link the cities while public transport is available within the larger communities.
The region hosts a major part of the West Coast semiconductor industry. Intel operates several large facilities here that shape local traffic patterns and the working landscape.
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