| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Tabor | city | South Dakota | United States | 42.94861 | -97.65861 | 1364 | 562 |
| Tacoma Park | city | South Dakota | United States | 45.54306 | -98.24667 | 1276 | 170 |
| Tea | city | South Dakota | United States | 43.44639 | -96.83556 | 1476 | 1758 |
| Terraville | city | South Dakota | United States | 44.36222 | -103.76417 | 5137 | 1991 |
| Terry | city | South Dakota | United States | 44.33361 | -103.81639 | 5757 | 3278 |
| Teton | city | South Dakota | United States | 44.28694 | -100.5075 | 1581 | 75 |
| Thatcher | city | South Dakota | United States | 45.02194 | -100.92722 | 2398 | 98 |
| Thomas | city | South Dakota | United States | 44.76083 | -97.20917 | 1742 | 335 |
| Thunder Butte | city | South Dakota | United States | 45.21278 | -101.66972 | 2040 | 47 |
| Thunder Hawk | city | South Dakota | United States | 45.93833 | -101.97444 | 2598 | 88 |
| Thunderbird Homes Addition | city | South Dakota | United States | 44.12222 | -103.47028 | 4599 | 307 |
| Tigerville | city | South Dakota | United States | 43.97667 | -103.63944 | 5452 | 313 |
| Tilford | city | South Dakota | United States | 44.30028 | -103.42944 | 3595 | 752 |
| Timber Lake | city | South Dakota | United States | 45.42917 | -101.07361 | 2198 | 91 |
| Tinton | city | South Dakota | United States | 44.38056 | -104.04806 | 6000 | 637 |
| Tolstoy | city | South Dakota | United States | 45.20806 | -99.61389 | 1899 | 133 |
| Tomahawk | city | South Dakota | United States | 44.21194 | -103.52806 | 4799 | 292 |
| Toronto | city | South Dakota | United States | 44.57306 | -96.64222 | 1988 | 284 |
| Torvik Subdivision | city | South Dakota | United States | 45.6625 | -97.07667 | 1289 | 2239 |
| Trail City | city | South Dakota | United States | 45.4725 | -100.725 | 2135 | 81 |
| Trent | city | South Dakota | United States | 43.90639 | -96.65361 | 1512 | 520 |
| Tripp | city | South Dakota | United States | 43.22556 | -97.96556 | 1558 | 274 |
| Trojan | city | South Dakota | United States | 44.34222 | -103.8375 | 6108 | 3769 |
| Troy | city | South Dakota | United States | 45.0375 | -96.865 | 1889 | 222 |
| Tschetter Colony | city | South Dakota | United States | 43.37028 | -97.68583 | 1249 | 341 |
| Tulare | city | South Dakota | United States | 44.73806 | -98.50944 | 1309 | 162 |
| Tunerville | city | South Dakota | United States | 44.89028 | -96.68083 | 1709 | 210 |
| Turkey Ridge | city | South Dakota | United States | 43.24361 | -97.27917 | 1509 | 567 |
| Turton | city | South Dakota | United States | 45.04972 | -98.09528 | 1322 | 84 |
| Tuthill | city | South Dakota | United States | 43.15583 | -101.49333 | 2985 | 117 |
| Twilight Hills Addition | city | South Dakota | United States | 44.08056 | -103.14611 | 3270 | 17169 |
| Twin Brooks | city | South Dakota | United States | 45.20583 | -96.77917 | 1249 | 270 |
| Two Strike | city | South Dakota | United States | 43.21306 | -100.87528 | 2785 | 372 |
| Tyndall | city | South Dakota | United States | 42.99333 | -97.8625 | 1391 | 584 |
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