| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ulmerton | city | Florida | United States | 27.89444 | -82.77056 | 6 | 183256 |
| Umatilla | city | Florida | United States | 28.92917 | -81.66583 | 78 | 6760 |
| Underwood Crossing | city | Florida | United States | 30.97444 | -85.58361 | 196 | 1938 |
| Union | city | Florida | United States | 30.80361 | -86.04222 | 219 | 2831 |
| Union Park | city | Florida | United States | 28.56778 | -81.28639 | 75 | 135394 |
| University Park | city | Florida | United States | 28.56667 | -81.20833 | 72 | 34932 |
| University Park | city | Florida | United States | 25.74611 | -80.36778 | 6 | 283811 |
| University Park | city | Florida | United States | 26.39389 | -80.13083 | 13 | 122839 |
| Up the Grove Beach | city | Florida | United States | 27.17583 | -80.72667 | 16 | 4842 |
| Upper Grand Lagoon | city | Florida | United States | 30.16306 | -85.74083 | 3 | 24435 |
| Usher | city | Florida | United States | 29.40722 | -82.81694 | 32 | 1530 |
| Usina Beach | city | Florida | United States | 29.95278 | -81.30472 | 3 | 16901 |
| Utopia | city | Florida | United States | 27.28972 | -82.36028 | 29 | 4483 |
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