County Seat: County Courthouse, 807 Main St., Oregon City 97045
Phone: 503-655-8581 (General); 503-655-8447 (Court Administrator) 503-655-8447 ext 6 (Records)
Population (2020): 426,515
Established: July 5, 1843
Elev. at Oregon City: 55'
Area: 1,884 sq. mi.
Average Temp.: January 40.2° July 68.4°
Assessed Value: $55,820,612,468
Real Market Value: $100,737,591,399
(includes the value of non-taxed properties)
Annual Precipitation: 48.40"
Economy: Agriculture, metals manufacturing, trucking and warehousing, nursery stock, retail services, wholesale trade and construction
Points of Interest
Mount Hood and Timberline Lodge, Willamette Falls and navigation locks, McLoughlin House, Canby Ferry, Molalla Buckaroo, driving tour of Old Barlow Road, Clackamas Town Center, Museum of the Oregon Territory, North Clackamas Aquatic Park
History and General Information
Clackamas County was named for the resident Clackamas Tribe and was one of the four original Oregon counties created in 1843. Oregon City, the county seat, was the first incorporated city west of the Rocky Mountains, the first capital of the Oregon Territory and the site of the first legislative session.
In 1849, when the city of San Francisco was platted, Oregon City was the site of the only federal court west of the Rockies. The plat was filed in 1850 in the first plat book of the first office of records on the West Coast and are still in Oregon City. The area’s early history is featured at the Clackamas County Historical Society and Museum of the Oregon Territory.
From its 55-foot elevation at Oregon City, the county rises to 11,235 feet at the peak of Mount Hood, the only year-round ski resort in the United States and the site of the Timberline Lodge National Historical Landmark. The mountains, rivers and forests offer excellent outdoor recreation activities, from skiing and rafting to fishing and camping.
Commissioners—Chair Tootie Smith 2025, Mark Shull 2025, Sonya Fischer 2023, Paul Savas 2023, Martha Schrader 2025; Dist. Atty. John D. Wentworth 2025; Assess. Tami Little 2023; Clerk Sherry Hall 2023; Justice of the Peace Karen Brisbin 2023; Sheriff Angela Brandenburg 2025; Surv. Ray Griffin; Treas. Brian T. Nava 2023; Co. Admin. Gary Schmidt