what county is lake oswego in
Lake Oswego /ÉsËwiËÉ¡oÊ/ is a city in the State of Oregon, primarily in Clackamas County with small portions extending into neighboring Multnomah and Washington counties. Located south of Portland surrounding the 405-acre (1.64 km2) Oswego Lake, the town was founded in 1847 and incorporated as Oswego in 1910. The city was the hub of Oregon's brief iron industry in the late 19th century and is today an affluent suburb of Portland.