| Rio Grande City to Frederick (Colorado) | 1,012.17 mi (1,628.93 km) |
| Rio Grande City to Frederick (Maryland) | 1,528.05 mi (2,459.16 km) |
| Rio Grande City to Fredericksburg (Texas) | 268.46 mi (432.05 km) |
| Rio Grande City to Fredericksburg (Virginia) | 1,487.16 mi (2,393.35 km) |
| Rio Grande City to Frederickson (Washington) | 1,920.42 mi (3,090.61 km) |
| Rio Grande City to Freeport (Illinois) | 1,215.91 mi (1,956.82 km) |
| Rio Grande City to Freeport (New York) | 1,746.32 mi (2,810.43 km) |
| Rio Grande City to Freeport (Texas) | 276.13 mi (444.39 km) |
| Rio Grande City to Fremont (California) | 1,554.72 mi (2,502.09 km) |
| Rio Grande City to Fremont (Nebraska) | 1,048.91 mi (1,688.06 km) |
| Rio Grande City to Fremont (Ohio) | 1,367.37 mi (2,200.57 km) |
| Rio Grande City to French Valley (California) | 1,200.18 mi (1,931.50 km) |
| Rio Grande City to Fresno (California) | 1,423.63 mi (2,291.11 km) |
| Rio Grande City to Fresno (Texas) | 298.90 mi (481.03 km) |
| Rio Grande City to Fridley (Minnesota) | 1,328.55 mi (2,138.09 km) |
