LOCATION United States

Harstine Island State Park

(Washington)

Harstine Island State Park

Harstine Island is an island in Mason County, Washington, United States. The US Census recognizes it as an unincorporated community. The island is located west of Case Inlet in southern Puget Sound, 16 km (9.9 mi) north of Olympia. It has a land area of 48.305 km2 (18.651 sq mi), and had a population of 1,412 as of the 2010 census.


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