Founded in 1921, Union County is one of 67 counties in the state of Florida. Historically, Union County was formed from Bradford. The city of Lake Butler is the county seat. With FIPS code of 125, Union County has a population of 16,335 and area of 240 square miles (622 km2).
List of all cities in Union County, FL alphabetically
| City/Town | Postal Code | Area Code |
| Florida Dept of Corrections, FL | 32026 | 386 |
| Lake Butler, FL | 32054 | 386 |
| Raiford, FL | 32026 | 386 |
| 32083 | 386 | |
| Worthington Springs, FL | 32697 | 386 |
Map of Cities in Union County, FL
