| Rapid City to Cadillac (Michigan) | 880.84 mi (1,417.58 km) |
| Rapid City to Caguas (Puerto Rico) | 2,792.82 mi (4,494.61 km) |
| Rapid City to Cahokia (Illinois) | 775.05 mi (1,247.32 km) |
| Rapid City to Calabasas (California) | 1,072.56 mi (1,726.12 km) |
| Rapid City to Caldwell (Idaho) | 669.43 mi (1,077.35 km) |
| Rapid City to Caledonia (Wisconsin) | 773.72 mi (1,245.18 km) |
| Rapid City to Calera (Alabama) | 1,163.76 mi (1,872.89 km) |
| Rapid City to Calexico (California) | 1,027.66 mi (1,653.86 km) |
| Rapid City to Calhoun (Georgia) | 1,176.51 mi (1,893.41 km) |
| Rapid City to California (Maryland) | 1,438.67 mi (2,315.31 km) |
| Rapid City to California City (California) | 991.15 mi (1,595.10 km) |
| Rapid City to Callaway (Florida) | 1,363.52 mi (2,194.37 km) |
| Rapid City to Calumet City (Illinois) | 810.48 mi (1,304.35 km) |
| Rapid City to Calverton (Maryland) | 1,395.08 mi (2,245.16 km) |
| Rapid City to Camano (Washington) | 961.67 mi (1,547.66 km) |
