There are 10 counties in South Florida

Counties:

Broward County
Charlotte County
Collier County
Glades County
Hendry County
Lee County
Martin County
Miami-Dade County
Monroe County (Keys)
Monroe County (Mainland)
Palm Beach County
 

Broward Charlotte Glades Hendry Lee Martin Miami-Dade Monroe (Keys) Monroe%20County%20(Mainland) Palm Beach
 The Floristic Inventory of South Florida