| Hard to Florence (South Carolina) | 4,506.07 mi (7,251.81 km) |
| Hard to Florence-Graham (California) | 5,951.58 mi (9,578.15 km) |
| Hard to Florham Park (New Jersey) | 3,987.50 mi (6,417.27 km) |
| Hard to Florida (Puerto Rico) | 4,655.30 mi (7,491.99 km) |
| Hard to Florida City (Florida) | 4,949.84 mi (7,966.00 km) |
| Hard to Florida Ridge (Florida) | 4,842.87 mi (7,793.85 km) |
| Hard to Florin (California) | 5,777.93 mi (9,298.67 km) |
| Hard to Florissant (Missouri) | 4,716.73 mi (7,590.84 km) |
| Hard to Flower Hill (Maryland) | 4,172.24 mi (6,714.57 km) |
| Hard to Flower Mound (Texas) | 5,266.79 mi (8,476.08 km) |
| Hard to Flowing Wells (Arizona) | 5,813.13 mi (9,355.32 km) |
| Hard to Foley (Alabama) | 5,018.87 mi (8,077.09 km) |
| Hard to Folsom (California) | 5,759.77 mi (9,269.46 km) |
| Hard to Fond du Lac (Wisconsin) | 4,410.61 mi (7,098.19 km) |
| Hard to Fontana (California) | 5,919.95 mi (9,527.24 km) |
