what county is olympia washington in
Thurston County is a county located in the U.S. state of Washington. As of the 2010 census, its population was 252,264. The county seat and largest city is Olympia, the state capital. Thurston County was created out of Lewis County by the government of Oregon Territory on January 12, 1852. At that time, it covered all of the Puget Sound region and the Olympic Peninsula.