| Rockwall to Cadillac (Michigan) | 981.63 mi (1,579.79 km) |
| Rockwall to Caguas (Puerto Rico) | 2,137.61 mi (3,440.15 km) |
| Rockwall to Cahokia (Illinois) | 524.56 mi (844.20 km) |
| Rockwall to Calabasas (California) | 1,280.73 mi (2,061.14 km) |
| Rockwall to Caldwell (Idaho) | 1,318.13 mi (2,121.32 km) |
| Rockwall to Caledonia (Wisconsin) | 826.20 mi (1,329.63 km) |
| Rockwall to Calera (Alabama) | 561.50 mi (903.64 km) |
| Rockwall to Calexico (California) | 1,105.38 mi (1,778.93 km) |
| Rockwall to Calhoun (Georgia) | 669.45 mi (1,077.38 km) |
| Rockwall to California (Maryland) | 1,177.50 mi (1,895.01 km) |
| Rockwall to California City (California) | 1,234.56 mi (1,986.83 km) |
| Rockwall to Callaway (Florida) | 668.64 mi (1,076.08 km) |
| Rockwall to Calumet City (Illinois) | 773.57 mi (1,244.94 km) |
| Rockwall to Calverton (Maryland) | 1,166.28 mi (1,876.95 km) |
| Rockwall to Camano (Washington) | 1,712.25 mi (2,755.59 km) |
