| Rio Grande City to Federal Way (Washington) | 1,929.21 mi (3,104.77 km) |
| Rio Grande City to Felida (Washington) | 1,874.07 mi (3,016.03 km) |
| Rio Grande City to Fenton (Michigan) | 1,418.30 mi (2,282.53 km) |
| Rio Grande City to Fergus Falls (Minnesota) | 1,383.52 mi (2,226.55 km) |
| Rio Grande City to Ferguson (Missouri) | 987.18 mi (1,588.71 km) |
| Rio Grande City to Fernandina Beach (Florida) | 1,093.82 mi (1,760.33 km) |
| Rio Grande City to Ferndale (Maryland) | 1,556.40 mi (2,504.78 km) |
| Rio Grande City to Ferndale (Michigan) | 1,421.11 mi (2,287.05 km) |
| Rio Grande City to Ferndale (Washington) | 2,008.18 mi (3,231.85 km) |
| Rio Grande City to Fernley (Nevada) | 1,484.99 mi (2,389.87 km) |
| Rio Grande City to Ferry Pass (Florida) | 761.78 mi (1,225.96 km) |
| Rio Grande City to Festus (Missouri) | 953.10 mi (1,533.86 km) |
| Rio Grande City to Fife (Washington) | 1,926.39 mi (3,100.22 km) |
| Rio Grande City to Fillmore (California) | 1,316.39 mi (2,118.52 km) |
| Rio Grande City to Findlay (Ohio) | 1,333.12 mi (2,145.46 km) |
