| Castle Rock to Coldwater (Michigan) | 1,053.20 mi (1,694.96 km) |
| Castle Rock to Colesville (Maryland) | 1,484.99 mi (2,389.86 km) |
| Castle Rock to College (Alaska) | 2,449.71 mi (3,942.42 km) |
| Castle Rock to College Park (Georgia) | 1,196.61 mi (1,925.76 km) |
| Castle Rock to College Park (Maryland) | 1,489.46 mi (2,397.05 km) |
| Castle Rock to College Station (Texas) | 776.12 mi (1,249.04 km) |
| Castle Rock to Collegedale (Tennessee) | 1,127.34 mi (1,814.27 km) |
| Castle Rock to Colleyville (Texas) | 620.50 mi (998.59 km) |
| Castle Rock to Collierville (Tennessee) | 884.59 mi (1,423.61 km) |
| Castle Rock to Collinsville (Illinois) | 797.49 mi (1,283.44 km) |
| Castle Rock to Colonia (New Jersey) | 1,610.81 mi (2,592.35 km) |
| Castle Rock to Colonial Heights (Virginia) | 1,489.72 mi (2,397.47 km) |
| Castle Rock to Colonial Park (Pennsylvania) | 1,483.14 mi (2,386.88 km) |
| Castle Rock to Colorado Springs (Colorado) | 35.51 mi (57.15 km) |
| Castle Rock to Colton (California) | 781.55 mi (1,257.79 km) |
