Thurston County

Location of Thurston County in Washington StateThurston County is located on the southern end of Puget Sound in Washington State.  It is bordered on the west by Grays Harbor, the northwest by Mason County, the northeast and east by Pierce County and the south by Lewis County.  As of the 2010 U.S. Census, Thurston County had a total land area of 721.96 square miles and a population of 252,264.  Olympia is the largest city with a population of 46,478.  Also of interest:

  • Intersecting watershed sub-basins(5):  Upper Chehalis, Lower Chehalis, Nisqually, Deschutes and Puget Sound.
  • Major lakes:  Summit Lake, Black Lake, Capitol Lake, Long Lake, Lake Saint Clair and Lake Lawrence.
  • Major rivers:  Nisqually River, Deschutes River, Black River, Chehalis River and Skookumchuck River.
  • Quiemuth Peak (2,922 feet) is the hightest point in Thurston County.

U.S. Census Bureau QuickFacts for Thurston County, WA

Office of Financial Management (OFM) county data for Thurston County, WA

RELATED ARTICLES

Woodard Creek Basin water resource protection study report cover
11/9/2015

Guiding growth-healthy watersheds: Woodard Creek Basin water resource protection study

An EPA-funded study by the Thurston Regional Planning Council identified recommended strategies and actions to protect and improve water quality and aquatic resources in the Woodard Creek  Basin. 

McLane Creek Basin water resource protection study report cover
11/9/2015

Guiding growth-healthy watersheds: McLane Creek Basin water resource protection study

An EPA-funded study by the Thurston Regional Planning Council identified recommended strategies and actions to protect and improve water quality and aquatic resources in the McLane Creek  Basin. 

Black Lake Basin water resource protection study report cover
11/5/2015

Guiding growth-healthy watersheds: Black Lake Basin water resource protection study

An EPA-funded study by the Thurston Regional Planning Council identified recommended strategies and actions to protect and improve water quality and aquatic resources in the Black Lake Basin. 

report cover photo
10/24/2014

Monitoring and adaptive management of the Nisqually Delta after tidal marsh restoration: Restoring ecosystem function for salmon

This 2009 report by the Nisqually Tribe establishes key measures of restoration development, habitat processes, and Chinook salmon response for the largest delta restoration project in the Pacific Northwest.

Pigeon Guillemots at Zangle Cove. Photo by Bobbie Moody.
7/17/2014

Pigeon Guillemot Foraging and Breeding Survey in and Near the Nisqually Reach Aquatic Reserve

A 2014 report describes a research and monitoring study of Pigeon Guillemot conducted in and near the Nisqually Reach Aquatic Reserve. 

5/22/2012

2010 Census Quick Facts for Thurston County, WA

Learn more about demographics in Thurston County, Washington.  The U.S. Census Bureau published the following quick facts.