Founded in 1824, Nassau County is one of 67 counties in the state of Florida. Historically, Nassau County was formed from Duval. The city of Fernandina Beach is the county seat. With FIPS code of 89, Nassau County has a population of 94,189 and area of 652 square miles (1,689 km2).
List of all cities in Nassau County, FL alphabetically
| City/Town | Postal Code | Area Code |
| Amelia City, FL | 32034 | 904 |
| Amelia Island, FL | 32034 | 904 |
| Amelia Village, FL | 32035 | 904 |
| Bryceville, FL | 32009 | 904 |
| Callahan, FL | 32011 | 904 |
| Fernandina, FL | 32034 | 904 |
| 32035 | 904 | |
| Fernandina Beach, FL | 32034 | 904 |
| 32035 | 904 | |
| Five Points Hamilton, FL | 32035 | 904 |
| Hilliard, FL | 32046 | 904 |
| Yulee, FL | 32041 | 904 |
| 32097 | 904 |
Map of Cities in Nassau County, FL
