Map of Thurston County, Washington

Thurston County is a county located in the U.S. state of Washington. As of the 2020 census, its population was 294,793. 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. On December 22 of the same year, Pierce, King, Island, and Jefferson counties were split off from Thurston County. It is named after Samuel R. Thurston, the Oregon Territory’s first delegate to Congress.

Thurston County comprises the Olympia-Tumwater, WA Metropolitan Statistical Area and is included in the Seattle–Tacoma, WA Combined Statistical Area.

Thurston County overview:
Name:	Thurston County
FIPS code:	53-067
State:	Washington
Founded:	January 12, 1852
Named for:	Samuel Thurston
Seat:	Olympia
Largest city:	Olympia
Total Area:	774 sq mi (2,000 km²)
Land Area:	722 sq mi (1,870 km²)
Total Population:	294,793
Population Density:	368/sq mi (142/km²)

Thurston County location map. Where is Thurston County?

Thurston County location on the U.S. Map. Where is Thurston County. — Location of Thurston County in the the United States.

Thurston County location on the Washington map. Where is Thurston County. — Location of Thurston County in Washington.

Thurston County Road Map

Thurston CountyStreet Map. — Street map of Thurston County, Washington. Source: OpenStreetMap (OSM)

Geography

According to the United States Census Bureau, the county has a total area of 774 square miles (2,000 km), of which 722 square miles (1,870 km) is land and 52 square miles (130 km) (6.7%) is water.

Major watersheds: Black River, Budd/Deschutes, Chehalis River, Eld Inlet, Henderson Inlet, Nisqually River, Skookumchuck River, Totten Inlet and West Capitol Forest.