| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Dacy (historical) | city | South Dakota | United States | 44.35 | -103.91 | 5869 | |
| Dahlberg | city | South Dakota | United States | 45.86 | -97.19 | 1204 | |
| Dakota Dunes | city | South Dakota | United States | 42.49 | -96.49 | 1089 | |
| Dalesburg | city | South Dakota | United States | 42.98 | -96.90 | 1223 | |
| Dallas | city | South Dakota | United States | 43.24 | -99.52 | 2509 | |
| Dalzell | city | South Dakota | United States | 44.34 | -102.40 | 2509 | |
| Danforth | city | South Dakota | United States | 44.25 | -98.88 | 1850 | |
| Danoby (historical) | city | South Dakota | United States | 43.77 | -103.73 | 6000 | |
| Dante | city | South Dakota | United States | 43.04 | -98.18 | 1669 | |
| Date | city | South Dakota | United States | 45.37 | -102.68 | 2775 | |
| Davis | city | South Dakota | United States | 43.26 | -97.00 | 1243 | |
| De Grey | city | South Dakota | United States | 44.29 | -99.92 | 1669 | |
| De Smet | city | South Dakota | United States | 44.39 | -97.55 | 1699 | |
| Deadwood | city | South Dakota | United States | 44.38 | -103.73 | 5029 | |
| Deerfield | city | South Dakota | United States | 44.02 | -103.83 | 5997 | |
| Deerfield Colony | city | South Dakota | United States | 45.59 | -98.90 | 1669 | |
| Deevaan Villa Development | city | South Dakota | United States | 45.50 | -98.46 | 1669 | |
| Dell Rapids | city | South Dakota | United States | 43.83 | -96.71 | 1669 | |
| Delmont | city | South Dakota | United States | 43.27 | -98.16 | 1669 | |
| Dempster | city | South Dakota | United States | 44.63 | -96.95 | 1679 | |
| Denby | city | South Dakota | United States | 43.06 | -102.34 | 3412 | |
| Dennis | city | South Dakota | United States | 43.26 | -103.87 | 3599 | |
| Derian Subdivision | city | South Dakota | United States | 45.44 | -98.52 | 1669 | |
| Devoe | city | South Dakota | United States | 45.09 | -98.88 | 1669 | |
| Dewey | city | South Dakota | United States | 43.53 | -104.04 | 3753 | |
| Dezera | city | South Dakota | United States | 43.17 | -98.50 | 1669 | |
| Diamond | city | South Dakota | United States | 45.74 | -96.69 | 974 | |
| Diamond City (historical) | city | South Dakota | United States | 44.15 | -103.70 | 5869 | |
| Dimock | city | South Dakota | United States | 43.47 | -97.99 | 1669 | |
| Dixon | city | South Dakota | United States | 43.38 | -99.47 | 1886 | |
| Doland | city | South Dakota | United States | 44.90 | -98.10 | 1669 | |
| Dolton | city | South Dakota | United States | 43.49 | -97.39 | 1669 | |
| Douglas City (historical) | city | South Dakota | United States | 43.38 | -98.32 | 1669 | |
| Dowling (historical) | city | South Dakota | United States | 44.33 | -101.98 | 2618 | |
| Draper | city | South Dakota | United States | 43.93 | -100.54 | 2509 | |
| Dudley | city | South Dakota | United States | 43.31 | -103.82 | 3553 | |
| Dumont | city | South Dakota | United States | 44.24 | -103.80 | 6213 | |
| Dupree | city | South Dakota | United States | 45.05 | -101.60 | 2509 | |
| Duxbury | city | South Dakota | United States | 45.24 | -98.50 | 1669 |