| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Forty (historical) | city | Mississippi | United States | 32.52 | -89.78 | 347 | |
| Forty Acres | city | Illinois | United States | 40.68 | -90.02 | 830 | |
| Forty Corners Village | city | Ohio | United States | 40.83 | -81.55 | 997 | |
| Forty Five | city | Tennessee | United States | 35.06 | -89.31 | 830 | |
| Forty Forks | city | Tennessee | United States | 35.29 | -88.58 | 830 | |
| Forty Fort | city | Pennsylvania | United States | 41.28 | -75.88 | 830 | |
| Forty Four | city | Arkansas | United States | 36.14 | -92.06 | 830 | |
| Forty Mile Colony | city | Montana | United States | 45.27 | -107.35 | 3599 | |
| Fortymile Bend | city | Florida | United States | 25.76 | -80.83 | 3 | |
| Fortyone Ranch Mobile Home Park | city | Indiana | United States | 41.39 | -87.47 | 830 | |
| Fortyville (historical) | city | Missouri | United States | 39.00 | -93.81 | 830 |