There are a total of 67 counties in the state of Florida. Among them, Escambia County is the oldest one (established in 1821) while Gilchrist County is the youngest (established in 1925). With population of 2,662,874, Miami-Dade County is the most populated. The biggest county by land area is Palm Beach County (5,268 km2) and the smallest is Union County (622 km2). Below please see all Florida counties which are listed in alphabetical order.
- Alachua County, FL
- Baker County, FL
- Bay County, FL
- Bradford County, FL
- Brevard County, FL
- Broward County, FL
- Calhoun County, FL
- Charlotte County, FL
- Citrus County, FL
- Clay County, FL
- Collier County, FL
- Columbia County, FL
- DeSoto County, FL
- Dixie County, FL
- Duval County, FL
- Escambia County, FL
- Flagler County, FL
- Franklin County, FL
- Gadsden County, FL
- Gilchrist County, FL
- Glades County, FL
- Gulf County, FL
- Hamilton County, FL
- Hardee County, FL
- Hendry County, FL
- Hernando County, FL
- Highlands County, FL
- Hillsborough County, FL
- Holmes County, FL
- Indian River County, FL
- Jackson County, FL
- Jefferson County, FL
- Lafayette County, FL
- Lake County, FL
- Lee County, FL
- Leon County, FL
- Levy County, FL
- Liberty County, FL
- Madison County, FL
- Manatee County, FL
- Marion County, FL
- Martin County, FL
- Miami-Dade County, FL
- Monroe County, FL
- Nassau County, FL
- Okaloosa County, FL
- Okeechobee County, FL
- Orange County, FL
- Osceola County, FL
- Palm Beach County, FL
- Pasco County, FL
- Pinellas County, FL
- Polk County, FL
- Putnam County, FL
- Saint Johns County, FL
- Saint Lucie County, FL
- Santa Rosa County, FL
- Sarasota County, FL
- Seminole County, FL
- Sumter County, FL
- Suwannee County, FL
- Taylor County, FL
- Union County, FL
- Volusia County, FL
- Wakulla County, FL
- Walton County, FL
- Washington County, FL