Treasure Island is a city in Florida, United States. As of the 2010 registration, the city populace was 6,705. According to the United States Census Bureau, the city has an aggregate region of 5.3 square miles, of which 1.6 square miles is arrive and 3.7 square miles is water. The Timucua exchanged with other Native American clans in the region until the landing of Panfilo de Narvaez in 1528. De Narvaez obliterated the indigenous individuals previously leaving the zone looking for gold. Fortune Island got its name right on time in the twentieth century, after a few property proprietors endeavored to help offers of the properties being produced on the island by first covering and afterward putting on a show to find a few wooden chests on the shoreline around 1915.