Spanaway is a census-designated place (CDP) in Pierce County, Washington, United States. The population was 27,227 at the 2010 census.
The Hudson's Bay Company, headquartered at Fort Nisqually, had control of this region until 1863. In 1890 the area was renamed "Lake Park" as a planned community by the Lake Park Land, Railway and Improvement Company, which bought all the nearby land east of the lake and built a rail line to its "recreation mecca" on the shore of "Spanaway Lake."Although the U.S. Board on Geographic Names recognized the community of "Lake Park" in 1897, it had to very belatedly reverse its decision in 1970 to accept common usage: Spanaway (Spanueh).