15 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Kissimmee | Osceola County | 82,639 |
| Kendall | Miami-Dade County | 79,160 |
| Kendale Lakes | Miami-Dade County | 51,789 |
| Kendall West | Miami-Dade County | 35,469 |
| Keystone | Hillsborough County | 26,564 |
| Key West | Monroe County | 24,265 |
| Key Biscayne | Miami-Dade County | 14,193 |
| Key Largo | Monroe County | 12,418 |
| Kathleen | Polk County | 5,721 |
| Kenneth City | Pinellas County | 4,925 |
| Kensington Park | Sarasota County | 3,550 |
| Keystone Heights | Clay County | 1,596 |
| Key Vista | Pasco County | 1,448 |
| Kenwood Estates | Palm Beach County | 1,244 |
| Key Colony Beach | Monroe County | 735 |