| Rapid City to Johnstown (Pennsylvania) | 1,265.59 mi (2,036.77 km) |
| Rapid City to Joliet (Illinois) | 782.95 mi (1,260.04 km) |
| Rapid City to Jonesboro (Arkansas) | 873.59 mi (1,405.92 km) |
| Rapid City to Joplin (Missouri) | 664.84 mi (1,069.95 km) |
| Rapid City to Joppatowne (Maryland) | 1,415.16 mi (2,277.47 km) |
| Rapid City to Juana Díaz (Puerto Rico) | 2,781.62 mi (4,476.59 km) |
| Rapid City to Junction City (Kansas) | 479.21 mi (771.22 km) |
| Rapid City to Juneau (Alaska) | 1,642.80 mi (2,643.82 km) |
| Rapid City to Jupiter (Florida) | 1,747.61 mi (2,812.51 km) |
| Rapid City to Jupiter Farms (Florida) | 1,743.19 mi (2,805.39 km) |
| Rapid City to Jurupa Valley (California) | 1,031.19 mi (1,659.54 km) |
| Rapid City to Justice (Illinois) | 793.71 mi (1,277.35 km) |
| Rapid City to Kahului (Hawaii) | 3,419.46 mi (5,503.09 km) |
| Rapid City to Kailua (Hawaii) | 3,458.76 mi (5,566.34 km) |
| Rapid City to Kalamazoo (Michigan) | 895.33 mi (1,440.90 km) |
