| Rockwall to Cibolo (Texas) | 254.29 mi (409.24 km) |
| Rockwall to Cicero (Illinois) | 778.50 mi (1,252.88 km) |
| Rockwall to Cimarron Hills (Colorado) | 617.96 mi (994.51 km) |
| Rockwall to Cincinnati (Ohio) | 792.30 mi (1,275.09 km) |
| Rockwall to Cinco Ranch (Texas) | 223.14 mi (359.11 km) |
| Rockwall to Circleville (Ohio) | 881.49 mi (1,418.62 km) |
| Rockwall to Citrus (California) | 1,236.23 mi (1,989.52 km) |
| Rockwall to Citrus Heights (California) | 1,443.50 mi (2,323.10 km) |
| Rockwall to Citrus Park (Florida) | 890.31 mi (1,432.82 km) |
| Rockwall to Claiborne (Louisiana) | 247.78 mi (398.76 km) |
| Rockwall to Claremont (California) | 1,226.27 mi (1,973.49 km) |
| Rockwall to Claremont (New Hampshire) | 1,487.97 mi (2,394.66 km) |
| Rockwall to Claremore (Oklahoma) | 239.43 mi (385.32 km) |
| Rockwall to Clarksburg (Maryland) | 1,153.06 mi (1,855.68 km) |
| Rockwall to Clarksburg (West Virginia) | 999.45 mi (1,608.45 km) |
