The graph below ranks each South Dakota County by total of American Indian residents according to the 2006 census estimates.
South Dakota total of American Indian population by county
| County | American Indian Population |
| Shannon |  11,996 |
| Todd | 8,174 |
| Pennington | 7,094 |
| Dewey | 4,446 |
| Minnehaha | 3,662 |
| Roberts | 3,114 |
| Charles Mix | 2,868 |
| Corson | 2,743 |
| Ziebach | 1,930 |
| Bennett | 1,920 |
| Hughes | 1,811 |
| Buffalo | 1,705 |
| Jackson | 1,484 |
| Lyman | 1,451 |
| Mellette | 1,139 |
| Brown | 1,006 |
| Moody | 781 |
| Tripp | 711 |
| Walworth | 708 |
| Day | 589 |
| Lawrence | 544 |
| Meade | 513 |
| Brule | 504 |
| Codington | 460 |
| Fall River | 459 |
| Davison | 439 |
| Clay | 426 |
| Yankton | 404 |
| Marshall | 358 |
| Bon Homme | 313 |
| Brookings | 310 |
| Custer | 295 |
| Gregory | 293 |
| Beadle | 239 |
| Lincoln | 210 |
| Stanley | 193 |
| Butte | 174 |
| Hyde | 135 |
| Spink | 127 |
| Lake | 116 |
| Union | 77 |
| Aurora | 61 |
| Grant | 61 |
| Perkins | 57 |
| Hutchinson | 56 |
| Haakon | 55 |
| Turner | 49 |
| Douglas | 45 |
| Deuel | 42 |
| Hamlin | 41 |
| Jones | 39 |
| Potter | 29 |
| Clark | 28 |
| Kingsbury | 27 |
| McCook | 26 |
| Jerauld | 19 |
| Sully | 17 |
| Harding | 16 |
| Edmunds | 14 |
| Sanborn | 13 |
| McPherson | 12 |
| Miner | 10 |
| Hanson | 8 |
| Campbell | 7 |
| Hand | 6 |
| Faulk | 6 |