Washington County is located in the Portland metropolitan area of Oregon and is the second-most populous county in the state, after Multnomah County. According to the U.S. Census Bureau, its population was approximately 600,000 as of the 2020 Census, with estimates showing continued growth in subsequent years.
The county is a major economic hub, home to the "Silicon Forest" — a cluster of technology companies including Intel, which operates its largest semiconductor manufacturing site in Hillsboro, the county seat. Other notable employers include Nike, whose world headquarters is in Beaverton, and various healthcare and education institutions.
Demographically, Washington County has a diverse population with a significant Hispanic and Latino community, as well as Asian and Pacific Islander residents. The county's median household income is among the highest in Oregon, reflecting its strong economic base.
In terms of governance, Washington County is administered by a Board of Commissioners. The county provides essential services including public health, transportation, and land-use planning. It also manages a network of parks and natural areas.
For specific 2026 rankings and statistics, readers are advised to consult official sources such as the U.S. Census Bureau, the Oregon Employment Department, and Washington County government publications, as detailed comparative data for 2026 may not yet be fully available.
