South Dakota Cities
- Ralph, SD
- Ramona, SD
- Randolph, SD
- Rapid City, SD
- Rapid Valley, SD
- Rauville, SD
- Ravinia, SD
- Raymond, SD
- Red Elm, SD
- Red Scaffold, SD
- Red Shirt, SD
- Redfern, SD
- Redfield, SD
- Redig, SD
- Redowl, SD
- Ree Heights, SD
- Reliance, SD
- Renner, SD
- Renner Corner, SD
- Reno, SD
- Reva, SD
- Revillo, SD
- Richland, SD
- Richmond, SD
- Ridgeview, SD
- Riverside, SD
- Riverside Colony, SD
- Rochford, SD
- Rockerville, SD
- Rockham, SD
- Rockport Colony, SD
- Rockyford, SD
- Rolland Colony, SD
- Roscoe, SD
- Rosebud, SD
- Rosedale Colony, SD
- Rosholt, SD
- Roslyn, SD
- Roswell, SD
- Roubaix, SD
- Rousseau, SD
- Rowena, SD
- Rudolph, SD
- Rumford, SD
- Rumpus Ridge, SD
- Running Water, SD
- Ruskin Park, SD
- Rustic Acres Colony, SD
- Rutland, SD
