Fernandina Beach is a city in Nassau County in the state of Florida in the United States of America and on Amelia Island. The area was first inhabited by the Timucuan Indian tribe. Known as the "Isle of 8 Flags", it had the following flags flown over it since 1562: France, Spain, Great Britain, Spain (again), the Patriots of Amelia Island, the Green Cross of Florida, Mexico, the Confederate States of America, and the United States. It is the only municipality in the United States that has flown eight different national flags. As of 2008, the U.S. Census Bureau estimates the City’s population to be 12,076. It is the county seat of Nassau County.