Harstine Island Map
The City of Harstine Island is located in Mason County in the State of Washington. Find directions to Harstine Island, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. The Harstine Island time zone is Pacific Daylight Time which is 8 hours behind Coordinated Universal Time (UTC).
Nearby cities include Key Center, Key Center, Forest Beach, Shelton, Glencove.