About Oregon City, Oregon
Coordinates: 45°21?26?N 122°36?26?W? / ?45.35722°N 122.60722°W? / 45.35722; -122.60722Coordinates: 45°21?26?N 122°36?26?W? / ?45.35722°N 122.60722°W? / 45.35722; -122.607228.4 sq mi (21.6 km2)8.1 sq mi (21.1 km2)0.2 sq mi (0.5 km2) ? Density 3,163.9/sq mi (1,221.6/km2)www.orcity.orgOregon City is the county seat of Clackamas County, Oregon, located on the Willamette River near the southern limits of the Portland metropolitan area. Established in 1829 by the Hudson's Bay Company, in 1845 it became the first U.S. city west of the Rocky Mountains to be incorporated. As of the 2010 census, the city population was 31,859.