Founded in 1827, Jefferson County is one of 67 counties in the state of Florida. Historically, Jefferson County was formed from Leon. The city of Monticello is the county seat. With FIPS code of 65, Jefferson County has a population of 14,555 and area of 598 square miles (1,549 km2).
List of all cities in Jefferson County, FL alphabetically
| City/Town | Postal Code | Area Code |
| Lamont, FL | 32336 | 850 |
| Lloyd, FL | 32337 | 850 |
| Monticello, FL | 32344 | 850 |
| 32345 | 850 | |
| Wacissa, FL | 32361 | 850 |
| Day, FL | 32013 | 386 |
| Mayo, FL | 32066 | 386 |
Map of Cities in Jefferson County, FL
