| Rapid City to Conyers (Georgia) | 1,254.53 mi (2,018.97 km) |
| Rapid City to Cookeville (Tennessee) | 1,080.83 mi (1,739.43 km) |
| Rapid City to Coolidge (Arizona) | 889.72 mi (1,431.87 km) |
| Rapid City to Coon Rapids (Minnesota) | 492.99 mi (793.39 km) |
| Rapid City to Cooper City (Florida) | 1,786.46 mi (2,875.03 km) |
| Rapid City to Coos Bay (Oregon) | 1,047.43 mi (1,685.67 km) |
| Rapid City to Copiague (New York) | 1,532.03 mi (2,465.57 km) |
| Rapid City to Coppell (Texas) | 837.47 mi (1,347.78 km) |
| Rapid City to Copperas Cove (Texas) | 940.35 mi (1,513.34 km) |
| Rapid City to Coral Gables (Florida) | 1,805.25 mi (2,905.27 km) |
| Rapid City to Coral Springs (Florida) | 1,775.71 mi (2,857.73 km) |
| Rapid City to Coral Terrace (Florida) | 1,801.65 mi (2,899.48 km) |
| Rapid City to Coralville (Iowa) | 610.27 mi (982.14 km) |
| Rapid City to Coram (New York) | 1,546.58 mi (2,488.97 km) |
| Rapid City to Corcoran (California) | 1,022.27 mi (1,645.18 km) |
