| Castle Rock to Hermiston (Oregon) | 856.94 mi (1,379.11 km) |
| Castle Rock to Hermitage (Pennsylvania) | 1,288.44 mi (2,073.54 km) |
| Castle Rock to Hermosa Beach (California) | 840.77 mi (1,353.09 km) |
| Castle Rock to Hernando (Mississippi) | 875.20 mi (1,408.50 km) |
| Castle Rock to Herndon (Virginia) | 1,465.80 mi (2,358.97 km) |
| Castle Rock to Herriman (Utah) | 387.13 mi (623.02 km) |
| Castle Rock to Herrin (Illinois) | 860.36 mi (1,384.61 km) |
| Castle Rock to Hershey (Pennsylvania) | 1,491.72 mi (2,400.68 km) |
| Castle Rock to Hesperia (California) | 768.82 mi (1,237.29 km) |
| Castle Rock to Hewitt (Texas) | 696.32 mi (1,120.62 km) |
| Castle Rock to Hialeah (Florida) | 1,697.46 mi (2,731.80 km) |
| Castle Rock to Hialeah Gardens (Florida) | 1,694.15 mi (2,726.47 km) |
| Castle Rock to Hibbing (Minnesota) | 813.49 mi (1,309.18 km) |
| Castle Rock to Hickory (North Carolina) | 1,309.18 mi (2,106.92 km) |
| Castle Rock to Hickory Hills (Illinois) | 906.87 mi (1,459.46 km) |
