| Castle Rock to Dallas (Texas) | 640.36 mi (1,030.56 km) |
| Castle Rock to Dalton (Georgia) | 1,138.61 mi (1,832.41 km) |
| Castle Rock to Daly City (California) | 957.67 mi (1,541.21 km) |
| Castle Rock to Damascus (Maryland) | 1,472.47 mi (2,369.72 km) |
| Castle Rock to Damascus (Oregon) | 987.19 mi (1,588.73 km) |
| Castle Rock to Dana Point (California) | 821.11 mi (1,321.45 km) |
| Castle Rock to Danbury (Connecticut) | 1,648.41 mi (2,652.85 km) |
| Castle Rock to Dania Beach (Florida) | 1,695.95 mi (2,729.37 km) |
| Castle Rock to Danville (California) | 929.20 mi (1,495.40 km) |
| Castle Rock to Danville (Illinois) | 915.91 mi (1,474.02 km) |
| Castle Rock to Danville (Indiana) | 976.10 mi (1,570.88 km) |
| Castle Rock to Danville (Kentucky) | 1,089.74 mi (1,753.77 km) |
| Castle Rock to Danville (Virginia) | 1,394.42 mi (2,244.10 km) |
| Castle Rock to Daphne (Alabama) | 1,132.03 mi (1,821.83 km) |
| Castle Rock to Darby (Pennsylvania) | 1,567.52 mi (2,522.68 km) |
