| Rio Grande City to Chicago Ridge (Illinois) | 1,230.62 mi (1,980.49 km) |
| Rio Grande City to Chickasha (Oklahoma) | 600.59 mi (966.56 km) |
| Rio Grande City to Chico (California) | 1,612.88 mi (2,595.67 km) |
| Rio Grande City to Chicopee (Massachusetts) | 1,841.24 mi (2,963.19 km) |
| Rio Grande City to Chillicothe (Ohio) | 1,278.97 mi (2,058.30 km) |
| Rio Grande City to Chillum (Maryland) | 1,532.87 mi (2,466.91 km) |
| Rio Grande City to Chino (California) | 1,239.35 mi (1,994.54 km) |
| Rio Grande City to Chino Hills (California) | 1,241.81 mi (1,998.50 km) |
| Rio Grande City to Chino Valley (Arizona) | 992.78 mi (1,597.73 km) |
| Rio Grande City to Chippewa Falls (Wisconsin) | 1,346.72 mi (2,167.34 km) |
| Rio Grande City to Choctaw (Oklahoma) | 635.40 mi (1,022.57 km) |
| Rio Grande City to Chowchilla (California) | 1,455.13 mi (2,341.80 km) |
| Rio Grande City to Christiansburg (Virginia) | 1,308.88 mi (2,106.44 km) |
| Rio Grande City to Chubbuck (Idaho) | 1,377.25 mi (2,216.47 km) |
| Rio Grande City to Chula Vista (California) | 1,174.04 mi (1,889.43 km) |
