- Clackamas County, Oregon (data.census.gov)
Clackamas County, Oregon has 1,870.7 square miles of land area and is the 18th largest county in Oregon by total area. Clackamas County, Oregon is bordered by Marion County, Oregon, Hood River County, Oregon, Washington County, Oregon, Yamhill County, Oregon, Multnomah County, Oregon, and Wasco County, Oregon.
- Clackamas County, Oregon (Wikipedia)
Clackamas County (/ˈklækəməs/ CLAK-ə-məss) is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 421,401, making it Oregon’s third-most populous county. Its county seat is Oregon City. The county was named after the native people living in the area at the time of the coming of Europeans, the Clackamas people, who are part of the Chinookan peoples.