| Rapid City to South Plainfield (New Jersey) | 1,483.40 mi (2,387.30 km) |
| Rapid City to South Portland (Maine) | 1,630.08 mi (2,623.36 km) |
| Rapid City to South Riding (Virginia) | 1,371.15 mi (2,206.66 km) |
| Rapid City to South River (New Jersey) | 1,488.15 mi (2,394.95 km) |
| Rapid City to South Salt Lake (Utah) | 499.84 mi (804.42 km) |
| Rapid City to South San Francisco (California) | 1,093.45 mi (1,759.74 km) |
| Rapid City to South San Jose Hills (California) | 1,047.80 mi (1,686.28 km) |
| Rapid City to South Sioux City (Nebraska) | 359.97 mi (579.32 km) |
| Rapid City to South St. Paul (Minnesota) | 504.64 mi (812.14 km) |
| Rapid City to South Valley (New Mexico) | 652.57 mi (1,050.22 km) |
| Rapid City to South Venice (Florida) | 1,649.50 mi (2,654.62 km) |
| Rapid City to South Whittier (California) | 1,056.77 mi (1,700.71 km) |
| Rapid City to South Yarmouth (Massachusetts) | 1,669.02 mi (2,686.02 km) |
| Rapid City to Southaven (Mississippi) | 944.04 mi (1,519.29 km) |
| Rapid City to Southchase (Florida) | 1,620.33 mi (2,607.66 km) |
