15 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Kissimmee | Osceola County | 86,150 |
| Kendall | Miami-Dade County | 79,013 |
| Kendale Lakes | Miami-Dade County | 51,525 |
| Kendall West | Miami-Dade County | 35,390 |
| Keystone | Hillsborough County | 27,136 |
| Key West | Monroe County | 24,960 |
| Key Biscayne | Miami-Dade County | 15,202 |
| Key Largo | Monroe County | 12,321 |
| Kathleen | Polk County | 6,557 |
| Kenneth City | Pinellas County | 4,944 |
| Kensington Park | Sarasota County | 3,509 |
| Keystone Heights | Clay County | 1,596 |
| Key Vista | Pasco County | 1,464 |
| Kenwood Estates | Palm Beach County | 1,421 |
| Key Colony Beach | Monroe County | 739 |