| Rockwall to Conyers (Georgia) | 719.93 mi (1,158.62 km) |
| Rockwall to Cookeville (Tennessee) | 660.32 mi (1,062.67 km) |
| Rockwall to Coolidge (Arizona) | 874.27 mi (1,407.01 km) |
| Rockwall to Coon Rapids (Minnesota) | 863.27 mi (1,389.30 km) |
| Rockwall to Cooper City (Florida) | 1,079.49 mi (1,737.28 km) |
| Rockwall to Coos Bay (Oregon) | 1,663.78 mi (2,677.59 km) |
| Rockwall to Copiague (New York) | 1,377.77 mi (2,217.31 km) |
| Rockwall to Coppell (Texas) | 32.22 mi (51.86 km) |
| Rockwall to Copperas Cove (Texas) | 151.36 mi (243.59 km) |
| Rockwall to Coral Gables (Florida) | 1,092.26 mi (1,757.82 km) |
| Rockwall to Coral Springs (Florida) | 1,073.34 mi (1,727.37 km) |
| Rockwall to Coral Terrace (Florida) | 1,088.96 mi (1,752.52 km) |
| Rockwall to Coralville (Iowa) | 662.24 mi (1,065.77 km) |
| Rockwall to Coram (New York) | 1,401.15 mi (2,254.93 km) |
| Rockwall to Corcoran (California) | 1,331.51 mi (2,142.85 km) |
