Treasure Island

Treasure Island is an artificial island in the San Francisco Bay and a neighborhood in the City and County of San Francisco. Built in 1936–37 for the 1939 Golden Gate International Exposition, the island's World's Fair site is a California Historical Landmark. Buildings there have been listed on the National Register of Historic Places, and the historical Naval Station Treasure Island, an auxiliary air facility , are designated in the Geographic Names Information System.
The San Francisco census tract that includes Treasure Island extends up and down the San Francisco Bay and includes a small uninhabited tip of western Alameda Island. Yerba Buena and Treasure islands together have a land area of 576.7 acres with – in 2010 – a total population of 2,500. Treasure Island is connected by a 900 ft causeway to Yerba Buena Island, which in turn has on- and off-ramps to Interstate 80 on the San Francisco–Oakland Bay Bridge.

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