Conanicut Island is an island in Narragansett Bay in the American state of Rhode Island. The second-largest in the Bay, it is connected on the east to Newport on Aquidneck Island by the Claiborne Pell Bridge, commonly known as the Newport Bridge, and on the west to North Kingstown on the mainland via the Jamestown-Verrazano Bridge. The town of Jamestown comprises the entire island. The U.S. Census Bureau reported a land area of 24.46 km2 (9.44 sq mi) and a population of 5,622 in 2000. A tombolo connects the southern part of Conanicut to an extension of the island to the southwest.