Lake Oswego, city, Clackamas County, northwestern Oregon, on the Willamette River, near Portland; settled 1846, incorporated as Oswego 1910, present name adopted 1959. It is named after Oswego, New York. Marylhurst College for Lifelong Learning (1893) and a lake (also called Lake Oswego) are in the area. Iron was produced in the community in the late 19th century. Population 22,868 (1980); 30,576 (1990); 35,278 (2000).
