| Rank | County | Percentage of White Residents | 
                            
                                
                                    | 1 | Faulk County, South Dakota | 98.6% | 
                            
                                
                                    | 2 | Clark County, South Dakota | 98.5% | 
                            
                                
                                    | 3 | McPherson County, South Dakota | 98.4% | 
                            
                                
                                    | 4 | Hand County, South Dakota | 98.3% | 
                            
                                
                                    | 5 | Hanson County, South Dakota | 98.3% | 
                            
                                
                                    | 6 | Hamlin County, South Dakota | 98.2% | 
                            
                                
                                    | 7 | Jerauld County, South Dakota | 98.2% | 
                            
                                
                                    | 8 | Campbell County, South Dakota | 98.2% | 
                            
                                
                                    | 9 | Miner County, South Dakota | 98.1% | 
                            
                                
                                    | 10 | Edmunds County, South Dakota | 98.1% | 
                            
                                
                                    | 11 | McCook County, South Dakota | 98.0% | 
                            
                                
                                    | 12 | Deuel County, South Dakota | 97.8% | 
                            
                                
                                    | 13 | Turner County, South Dakota | 97.5% | 
                            
                                
                                    | 14 | Sanborn County, South Dakota | 97.5% | 
                            
                                
                                    | 15 | Kingsbury County, South Dakota | 97.4% | 
                            
                                
                                    | 16 | Grant County, South Dakota | 97.4% | 
                            
                                
                                    | 17 | Spink County, South Dakota | 97.2% | 
                            
                                
                                    | 18 | Potter County, South Dakota | 97.2% | 
                            
                                
                                    | 19 | Hutchinson County, South Dakota | 97.2% | 
                            
                                
                                    | 20 | Perkins County, South Dakota | 96.8% | 
                            
                                
                                    | 21 | Harding County, South Dakota | 96.3% | 
                            
                                
                                    | 22 | Lake County, South Dakota | 96.3% | 
                            
                                
                                    | 23 | Douglas County, South Dakota | 96.2% | 
                            
                                
                                    | 24 | Aurora County, South Dakota | 96.2% | 
                            
                                
                                    | 25 | Lincoln County, South Dakota | 95.8% | 
                            
                                
                                    | 26 | Union County, South Dakota | 95.7% | 
                            
                                
                                    | 27 | Sully County, South Dakota | 95.6% | 
                            
                                
                                    | 28 | Codington County, South Dakota | 95.3% | 
                            
                                
                                    | 29 | Butte County, South Dakota | 94.7% | 
                            
                                
                                    | 30 | Davison County, South Dakota | 94.3% | 
                            
                                
                                    | 31 | Lawrence County, South Dakota | 94.1% | 
                            
                                
                                    | 32 | Custer County, South Dakota | 93.6% | 
                            
                                
                                    | 33 | Brookings County, South Dakota | 93.4% | 
                            
                                
                                    | 34 | Jones County, South Dakota | 93.3% | 
                            
                                
                                    | 35 | Haakon County, South Dakota | 93.2% | 
                            
                                
                                    | 36 | Yankton County, South Dakota | 93.1% | 
                            
                                
                                    | 37 | Brown County, South Dakota | 92.8% | 
                            
                                
                                    | 38 | Meade County, South Dakota | 91.7% | 
                            
                                
                                    | 39 | Clay County, South Dakota | 90.9% | 
                            
                                
                                    | 40 | Beadle County, South Dakota | 90.5% | 
                            
                                
                                    | 41 | Bon Homme County, South Dakota | 89.8% | 
                            
                                
                                    | 42 | Gregory County, South Dakota | 89.6% | 
                            
                                
                                    | 43 | Hyde County, South Dakota | 89.3% | 
                            
                                
                                    | 44 | Minnehaha County, South Dakota | 89.1% | 
                            
                                
                                    | 45 | Stanley County, South Dakota | 89.0% | 
                            
                                
                                    | 46 | Fall River County, South Dakota | 88.8% | 
                            
                                
                                    | 47 | Day County, South Dakota | 88.6% | 
                            
                                
                                    | 48 | Brule County, South Dakota | 88.2% | 
                            
                                
                                    | 49 | Marshall County, South Dakota | 88.1% | 
                            
                                
                                    | 50 | Hughes County, South Dakota | 85.2% | 
                            
                                
                                    | 51 | Pennington County, South Dakota | 84.1% | 
                            
                                
                                    | 52 | Tripp County, South Dakota | 83.4% | 
                            
                                
                                    | 53 | Walworth County, South Dakota | 82.6% | 
                            
                                
                                    | 54 | Moody County, South Dakota | 82.0% | 
                            
                                
                                    | 55 | Charles Mix County, South Dakota | 64.6% | 
                            
                                
                                    | 56 | Roberts County, South Dakota | 60.4% | 
                            
                                
                                    | 57 | Lyman County, South Dakota | 57.7% | 
                            
                                
                                    | 58 | Jackson County, South Dakota | 42.9% | 
                            
                                
                                    | 59 | Mellette County, South Dakota | 41.5% | 
                            
                                
                                    | 60 | Bennett County, South Dakota | 33.8% | 
                            
                                
                                    | 61 | Corson County, South Dakota | 31.0% | 
                            
                                
                                    | 62 | Ziebach County, South Dakota | 24.3% | 
                            
                                
                                    | 63 | Dewey County, South Dakota | 22.1% | 
                            
                                
                                    | 64 | Buffalo County, South Dakota | 17.2% | 
                            
                                
                                    | 65 | Todd County, South Dakota | 10.6% | 
                            
                                
                                    | 66 | Shannon County, South Dakota | 5.3% |