| Castle Rock to Wichita (Kansas) | 422.11 mi (679.32 km) |
| Castle Rock to Wichita Falls (Texas) | 515.20 mi (829.14 km) |
| Castle Rock to Wickliffe (Ohio) | 1,234.53 mi (1,986.79 km) |
| Castle Rock to Wildomar (California) | 794.57 mi (1,278.73 km) |
| Castle Rock to Wildwood (Florida) | 1,492.38 mi (2,401.75 km) |
| Castle Rock to Wildwood (Missouri) | 763.03 mi (1,227.98 km) |
| Castle Rock to Wilkes-Barre (Pennsylvania) | 1,525.08 mi (2,454.38 km) |
| Castle Rock to Wilkinsburg (Pennsylvania) | 1,321.54 mi (2,126.82 km) |
| Castle Rock to Williamsburg (Virginia) | 1,526.40 mi (2,456.50 km) |
| Castle Rock to Williamsport (Pennsylvania) | 1,464.99 mi (2,357.67 km) |
| Castle Rock to Williamstown (New Jersey) | 1,584.75 mi (2,550.40 km) |
| Castle Rock to Willimantic (Connecticut) | 1,711.10 mi (2,753.75 km) |
| Castle Rock to Williston (North Dakota) | 611.37 mi (983.91 km) |
| Castle Rock to Willmar (Minnesota) | 638.45 mi (1,027.49 km) |
| Castle Rock to Willoughby (Ohio) | 1,237.64 mi (1,991.78 km) |
