| City | County | 2026 Pop. ↓ |
|---|---|---|
| Fort Polk South | Allen Parish | 7,829 |
| Franklin | St. Mary Parish | 6,134 |
| Franklinton | Washington Parish | 3,565 |
| Farmerville | Union Parish | 3,422 |
| Ferriday | Concordia Parish | 2,949 |
| Fort Polk North | Vernon Parish | 1,842 |
| French Settlement | Livingston Parish | 1,186 |
| Fifth Ward | Avoyelles Parish | 1,174 |
| Folsom | St. Tammany Parish | 859 |
| Fordoche | Pointe Coupee Parish | 836 |
| Forest Hill | Rapides Parish | 614 |
| Florien | Sabine Parish | 535 |
| Fort Jesup | Sabine Parish | 369 |
| Forest | West Carroll Parish | 282 |
| Fenton | Jefferson Davis Parish | 213 |
| Fisher | Sabine Parish | 186 |