| Rapid City to Carrollwood (Florida) | 1,591.80 mi (2,561.76 km) |
| Rapid City to Carson (California) | 1,070.52 mi (1,722.84 km) |
| Rapid City to Carson City (Nevada) | 916.93 mi (1,475.66 km) |
| Rapid City to Carteret (New Jersey) | 1,492.45 mi (2,401.86 km) |
| Rapid City to Cartersville (Georgia) | 1,197.04 mi (1,926.44 km) |
| Rapid City to Carthage (Missouri) | 667.44 mi (1,074.14 km) |
| Rapid City to Cary (Illinois) | 764.49 mi (1,230.33 km) |
| Rapid City to Cary (North Carolina) | 1,407.15 mi (2,264.59 km) |
| Rapid City to Casa de Oro-Mount Helix (California) | 1,076.15 mi (1,731.89 km) |
| Rapid City to Casa Grande (Arizona) | 897.98 mi (1,445.15 km) |
| Rapid City to Casas Adobes (Arizona) | 913.12 mi (1,469.53 km) |
| Rapid City to Cascades (Virginia) | 1,373.71 mi (2,210.78 km) |
| Rapid City to Casper (Wyoming) | 177.18 mi (285.14 km) |
| Rapid City to Casselberry (Florida) | 1,608.70 mi (2,588.95 km) |
| Rapid City to Castaic (California) | 1,054.52 mi (1,697.09 km) |
