Nassau County is located in Northeast Florida bordering Georgia on the north, the Atlantic Ocean on the east, and Duval and Baker County.
Nassau County was established from St. Johns County in 1824 and named for the Nassau Sound, which separates Nassau and Duval counties. The name comes from the capital of the Bahamas, which was named for the Duchy of Nassau, a former German state.
Region: Northeast Florida Region
Metro Area: Jacksonville, Florida Metro Area
County Seat: Fernandina Beach