Treasure Island

Treasure Island

 

Treasure Island is a private island in Puget Sound located near Grapeview in Mason County, Washington. The Treasure Island Country Club is the homeowners' association for the island. Treasure Island is open to members of the Treasure Island Country Club and their guests.

 

A new one-lane bridge connects the island with the mainland. The old bridge, built on timber pilings and in service for nearly 60 years, was replaced by a modern concrete-and-steel bridge in 2011–2012.

 

The private lots on Treasure Island are owned by a mix of year-round and summer residents, all of whom are members of the Treasure Island Country Club. The Club owns the island's bridge, water system, roads, beach lot, and dock. The TICC Board of Trustees manages the Club's assets for the benefit of island property owners.

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​Treasure Island is roughly 35 miles from Tacoma or Olympia. It is about 3 miles south of Allyn. Some state maps refer to the island as Reach Island. However, road signs and local residents call it Treasure Island.