Lakewood is a city in Pierce County, Washington, United States. The population was 63,612 at the 2020 census. Lakewood was officially incorporated as a city on February 28, 1996, on the same day as Edgewood. It immediately became the second largest city in Pierce County and among the largest in the state. Three previous attempts to incorporate as a city had been rejected by voters in 1971, 1990, and 1994 before it was approved by a 20-point margin on March 14, 1995, within a smaller area. Historical names include Tacoma/Lakewood Center and Lakes District. Lakewood is home to the Clover Park School District, the Lakewood Water District, Fort Steilacoom Park and Western State Hospital, a regional state psychiatric hospital. Thornewood Castle was built in the vicinity of Tacoma in the area that is now Lakewood.