| Rank | County | Percentage of Minors | 
                            
                                
                                    | 1 | Buffalo County, South Dakota | 41.1% | 
                            
                                
                                    | 2 | Todd County, South Dakota | 40.6% | 
                            
                                
                                    | 3 | Shannon County, South Dakota | 38.7% | 
                            
                                
                                    | 4 | Ziebach County, South Dakota | 35.6% | 
                            
                                
                                    | 5 | Dewey County, South Dakota | 34.6% | 
                            
                                
                                    | 6 | Corson County, South Dakota | 33.9% | 
                            
                                
                                    | 7 | Bennett County, South Dakota | 33.2% | 
                            
                                
                                    | 8 | Jackson County, South Dakota | 32.5% | 
                            
                                
                                    | 9 | Hanson County, South Dakota | 31.8% | 
                            
                                
                                    | 10 | Mellette County, South Dakota | 30.8% | 
                            
                                
                                    | 11 | Hamlin County, South Dakota | 29.9% | 
                            
                                
                                    | 12 | Charles Mix County, South Dakota | 29.5% | 
                            
                                
                                    | 13 | Lincoln County, South Dakota | 29.1% | 
                            
                                
                                    | 14 | Lyman County, South Dakota | 28.9% | 
                            
                                
                                    | 15 | Roberts County, South Dakota | 28.5% | 
                            
                                
                                    | 16 | Aurora County, South Dakota | 26.5% | 
                            
                                
                                    | 17 | Moody County, South Dakota | 25.6% | 
                            
                                
                                    | 18 | McCook County, South Dakota | 25.3% | 
                            
                                
                                    | 19 | Union County, South Dakota | 25.2% | 
                            
                                
                                    | 20 | Brule County, South Dakota | 25.0% | 
                            
                                
                                    | 21 | Minnehaha County, South Dakota | 24.8% | 
                            
                                
                                    | 22 | Beadle County, South Dakota | 24.5% | 
                            
                                
                                    | 23 | Codington County, South Dakota | 24.4% | 
                            
                                
                                    | 24 | Spink County, South Dakota | 24.4% | 
                            
                                
                                    | 25 | Butte County, South Dakota | 24.2% | 
                            
                                
                                    | 26 | Pennington County, South Dakota | 24.2% | 
                            
                                
                                    | 27 | Hutchinson County, South Dakota | 24.0% | 
                            
                                
                                    | 28 | Edmunds County, South Dakota | 23.7% | 
                            
                                
                                    | 29 | Meade County, South Dakota | 23.7% | 
                            
                                
                                    | 30 | Turner County, South Dakota | 23.6% | 
                            
                                
                                    | 31 | Miner County, South Dakota | 23.3% | 
                            
                                
                                    | 32 | Hughes County, South Dakota | 23.2% | 
                            
                                
                                    | 33 | Faulk County, South Dakota | 23.1% | 
                            
                                
                                    | 34 | Davison County, South Dakota | 23.1% | 
                            
                                
                                    | 35 | Deuel County, South Dakota | 23.0% | 
                            
                                
                                    | 36 | Brown County, South Dakota | 23.0% | 
                            
                                
                                    | 37 | Jones County, South Dakota | 22.8% | 
                            
                                
                                    | 38 | Kingsbury County, South Dakota | 22.8% | 
                            
                                
                                    | 39 | Clark County, South Dakota | 22.8% | 
                            
                                
                                    | 40 | Haakon County, South Dakota | 22.8% | 
                            
                                
                                    | 41 | Tripp County, South Dakota | 22.7% | 
                            
                                
                                    | 42 | Stanley County, South Dakota | 22.7% | 
                            
                                
                                    | 43 | Harding County, South Dakota | 22.7% | 
                            
                                
                                    | 44 | Hyde County, South Dakota | 22.5% | 
                            
                                
                                    | 45 | Gregory County, South Dakota | 22.3% | 
                            
                                
                                    | 46 | Douglas County, South Dakota | 22.2% | 
                            
                                
                                    | 47 | Grant County, South Dakota | 22.2% | 
                            
                                
                                    | 48 | Jerauld County, South Dakota | 21.9% | 
                            
                                
                                    | 49 | Marshall County, South Dakota | 21.8% | 
                            
                                
                                    | 50 | Walworth County, South Dakota | 21.7% | 
                            
                                
                                    | 51 | Yankton County, South Dakota | 21.4% | 
                            
                                
                                    | 52 | Sanborn County, South Dakota | 21.4% | 
                            
                                
                                    | 53 | Day County, South Dakota | 21.3% | 
                            
                                
                                    | 54 | McPherson County, South Dakota | 21.0% | 
                            
                                
                                    | 55 | Hand County, South Dakota | 20.8% | 
                            
                                
                                    | 56 | Perkins County, South Dakota | 20.7% | 
                            
                                
                                    | 57 | Sully County, South Dakota | 20.7% | 
                            
                                
                                    | 58 | Lake County, South Dakota | 20.4% | 
                            
                                
                                    | 59 | Potter County, South Dakota | 19.8% | 
                            
                                
                                    | 60 | Custer County, South Dakota | 19.2% | 
                            
                                
                                    | 61 | Bon Homme County, South Dakota | 19.2% | 
                            
                                
                                    | 62 | Clay County, South Dakota | 18.8% | 
                            
                                
                                    | 63 | Lawrence County, South Dakota | 18.8% | 
                            
                                
                                    | 64 | Brookings County, South Dakota | 18.7% | 
                            
                                
                                    | 65 | Campbell County, South Dakota | 17.3% | 
                            
                                
                                    | 66 | Fall River County, South Dakota | 17.0% |