Lakewood is a city in Pierce County, Washington, United States. The population was 58,163 at the 2010 census. Lakewood was officially incorporated on February 28, 1996. Historical names include Tacoma/Lakewood Center and Lakes District. Lakewood is the second-largest city in Pierce County and is home to the Clover Park School District, the Lakes Water District, Fort Steilacoom Park and Western State Hospital, a regional state psychiatric hospital.