There are
1,353 mi
from Rapid City, SD to Ridgeland, MS
That's the driving distance. It would take 1 day to go from Rapid City, South Dakota to Ridgeland, Mississippi.
The flight distance (direct flight from Rapid City, SD to Ridgeland, MS) is 1,071.16 mi.
1,353 mi = 2,176.97 kms