| Rockwall to Cordele (Georgia) | 741.24 mi (1,192.91 km) |
| Rockwall to Corinth (Mississippi) | 475.22 mi (764.79 km) |
| Rockwall to Corinth (Texas) | 39.75 mi (63.97 km) |
| Rockwall to Cornelius (North Carolina) | 905.36 mi (1,457.04 km) |
| Rockwall to Cornelius (Oregon) | 1,657.81 mi (2,667.98 km) |
| Rockwall to Corning (New York) | 1,234.36 mi (1,986.51 km) |
| Rockwall to Corona (California) | 1,218.44 mi (1,960.89 km) |
| Rockwall to Coronado (California) | 1,201.85 mi (1,934.18 km) |
| Rockwall to Corpus Christi (Texas) | 363.04 mi (584.26 km) |
| Rockwall to Corsicana (Texas) | 57.68 mi (92.83 km) |
| Rockwall to Cortland (New York) | 1,288.15 mi (2,073.07 km) |
| Rockwall to Corvallis (Oregon) | 1,644.40 mi (2,646.41 km) |
| Rockwall to Coshocton (Ohio) | 953.41 mi (1,534.36 km) |
| Rockwall to Costa Mesa (California) | 1,239.19 mi (1,994.28 km) |
| Rockwall to Coto de Caza (California) | 1,220.69 mi (1,964.52 km) |
