| Rio Grande City to Finneytown (Ohio) | 1,212.16 mi (1,950.79 km) |
| Rio Grande City to Firestone (Colorado) | 1,014.81 mi (1,633.18 km) |
| Rio Grande City to Fish Hawk (Florida) | 1,025.44 mi (1,650.29 km) |
| Rio Grande City to Fishers (Indiana) | 1,194.28 mi (1,922.00 km) |
| Rio Grande City to Fitchburg (Massachusetts) | 1,888.75 mi (3,039.65 km) |
| Rio Grande City to Fitchburg (Wisconsin) | 1,263.41 mi (2,033.26 km) |
| Rio Grande City to Five Corners (Washington) | 1,867.77 mi (3,005.88 km) |
| Rio Grande City to Five Forks (South Carolina) | 1,143.52 mi (1,840.32 km) |
| Rio Grande City to Flagstaff (Arizona) | 971.77 mi (1,563.91 km) |
| Rio Grande City to Flat Rock (Michigan) | 1,398.18 mi (2,250.16 km) |
| Rio Grande City to Fleming Island (Florida) | 1,071.46 mi (1,724.35 km) |
| Rio Grande City to Flint (Michigan) | 1,430.64 mi (2,302.39 km) |
| Rio Grande City to Floral Park (New York) | 1,743.01 mi (2,805.10 km) |
| Rio Grande City to Florence (Alabama) | 882.59 mi (1,420.39 km) |
| Rio Grande City to Florence (Arizona) | 884.66 mi (1,423.73 km) |
