Polk County, Oregon

Polk County
County
Polk County Courthouse in Dallas
Location within the U.S. state of Oregon
Oregon's location within the U.S.
Coordinates: 44°55′N 123°25′W / 44.91°N 123.42°W / 44.91; -123.42
Country	United States
State	Oregon
Founded	December 22, 1845
Named for	James K. Polk
Seat	Dallas
Largest city	Salem (portion)
Area
• Total	744 sq mi (1,930 km2)
• Land	741 sq mi (1,920 km2)
• Water	3.1 sq mi (8 km2)  0.4%
Population  (2020)
• Total	87,433
• Estimate  (2023)	89,805
• Density	118/sq mi (46/km2)
Time zone	UTC−8 (Pacific)
• Summer (DST)	UTC−7 (PDT)
Congressional district	6th
Website	www.co.polk.or.us

Polk County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 87,433.^[1] The county seat is Dallas.^[2] The county is named for James Knox Polk, the 11th president of the United States.

Polk County is part of the Salem, OR Metropolitan Statistical Area, which is also included in the Portland-Vancouver-Salem, OR-WA Combined Statistical Area. It is located in the Willamette Valley.