Flandreau is the #1 ranked city in South Dakota with 0.602 (diversity index). This ranking includes 80 South Dakota cities with available data.
| # | City | Population | Diversity Index |
|---|---|---|---|
| 1 | Flandreau | 2,291 | 0.602 |
| 2 | Wagner | 1,555 | 0.586 |
| 3 | Martin | 1,054 | 0.568 |
| 4 | Springfield | 2,073 | 0.547 |
| 5 | Huron | 14,347 | 0.529 |
| 6 | Sisseton | 2,593 | 0.523 |
| 7 | Mobridge | 2,928 | 0.472 |
| 8 | Chamberlain | 2,621 | 0.468 |
| 9 | Winner | 2,900 | 0.422 |
| 10 | Green Valley | 1,503 | 0.404 |
| 11 | Mission | 1,380 | 0.382 |
| 12 | Blackhawk | 2,805 | 0.378 |
| 13 | Rapid Valley | 7,153 | 0.368 |
| 14 | Rapid City | 76,836 | 0.367 |
| 15 | Box Elder | 12,457 | 0.349 |
| 16 | Sioux Falls | 197,642 | 0.347 |
| 17 | Freeman | 1,558 | 0.342 |
| 18 | Hot Springs | 3,506 | 0.321 |
| 19 | Aberdeen | 28,297 | 0.312 |
| 20 | Pierre | 14,008 | 0.308 |
| 21 | Gettysburg | 1,344 | 0.306 |
| 22 | North Sioux City | 3,018 | 0.289 |
| 23 | Pine Ridge | 2,480 | 0.273 |
| 24 | Vermillion | 11,800 | 0.264 |
| 25 | Garretson | 1,166 | 0.258 |
| 26 | Eagle Butte | 1,492 | 0.254 |
| 27 | Worthing | 1,087 | 0.248 |
| 28 | Ashland Heights | 1,142 | 0.240 |
| 29 | Lennox | 2,587 | 0.239 |
| 30 | Gregory | 1,330 | 0.239 |
| 31 | Brookings | 23,710 | 0.235 |
| 32 | Yankton | 15,501 | 0.232 |
| 33 | Britton | 1,117 | 0.229 |
| 34 | Spearfish | 12,551 | 0.223 |
| 35 | Milbank | 3,513 | 0.218 |
| 36 | Colman | 1,011 | 0.204 |
| 37 | Custer | 2,148 | 0.202 |
| 38 | Dakota Dunes | 4,129 | 0.202 |
| 39 | Aurora | 1,407 | 0.191 |
| 40 | Clark | 1,181 | 0.190 |
| 41 | Mitchell | 15,637 | 0.189 |
| 42 | Watertown | 22,859 | 0.181 |
| 43 | Parker | 1,247 | 0.174 |
| 44 | Belle Fourche | 5,741 | 0.173 |
| 45 | Salem | 1,201 | 0.172 |
| 46 | Groton | 1,794 | 0.164 |
| 47 | Webster | 1,823 | 0.160 |
| 48 | Harrisburg | 7,790 | 0.159 |
| 49 | Lemmon | 1,214 | 0.153 |
| 50 | Tea | 6,339 | 0.149 |
| 51 | Sturgis | 7,111 | 0.145 |
| 52 | Hartford | 3,412 | 0.145 |
| 53 | Fort Pierre | 2,534 | 0.140 |
| 54 | Rosebud | 1,710 | 0.140 |
| 55 | Redfield | 2,230 | 0.134 |
| 56 | Brandon | 10,996 | 0.131 |
| 57 | Summerset | 2,978 | 0.124 |
| 58 | Deadwood | 1,319 | 0.119 |
| 59 | Dell Rapids | 3,947 | 0.118 |
| 60 | Beresford | 2,437 | 0.118 |
| 61 | Canton | 3,060 | 0.114 |
| 62 | Parkston | 1,981 | 0.109 |
| 63 | Baltic | 1,512 | 0.108 |
| 64 | Fort Thompson | 1,134 | 0.106 |
| 65 | Platte | 1,310 | 0.106 |
| 66 | Elk Point | 2,391 | 0.101 |
| 67 | Volga | 2,246 | 0.100 |
| 68 | Lead | 2,997 | 0.085 |
| 69 | Clear Lake | 1,333 | 0.083 |
| 70 | Crooks | 1,216 | 0.082 |
| 71 | Tyndall | 1,206 | 0.082 |
| 72 | Ipswich | 1,126 | 0.079 |
| 73 | Marion | 1,004 | 0.077 |
| 74 | North Spearfish | 2,201 | 0.075 |
| 75 | Miller | 1,346 | 0.071 |
| 76 | Madison | 6,158 | 0.066 |
| 77 | Oglala | 1,601 | 0.061 |
| 78 | Kyle | 1,495 | 0.060 |
| 79 | North Eagle Butte | 1,432 | 0.057 |
| 80 | Colonial Pine Hills | 2,347 | 0.017 |
Cities in South Dakota are ranked by diversity index. Only cities with populations above 1,000 are included. Data sourced from U.S. Census Bureau ACS. Last updated 2026.