| Rank | County | Percentage of Residents Living In Multi-Unit Buildings | 
                            
                                
                                    | 1 | Clay County, South Dakota | 30.5% | 
                            
                                
                                    | 2 | Brookings County, South Dakota | 29.2% | 
                            
                                
                                    | 3 | Minnehaha County, South Dakota | 27.0% | 
                            
                                
                                    | 4 | Davison County, South Dakota | 24.1% | 
                            
                                
                                    | 5 | Brown County, South Dakota | 24.0% | 
                            
                                
                                    | 6 | Beadle County, South Dakota | 23.7% | 
                            
                                
                                    | 7 | Hughes County, South Dakota | 23.5% | 
                            
                                
                                    | 8 | Pennington County, South Dakota | 21.5% | 
                            
                                
                                    | 9 | Lawrence County, South Dakota | 20.9% | 
                            
                                
                                    | 10 | Lincoln County, South Dakota | 18.7% | 
                            
                                
                                    | 11 | Yankton County, South Dakota | 18.1% | 
                            
                                
                                    | 12 | Todd County, South Dakota | 17.5% | 
                            
                                
                                    | 13 | Fall River County, South Dakota | 17.2% | 
                            
                                
                                    | 14 | Brule County, South Dakota | 17.2% | 
                            
                                
                                    | 15 | Union County, South Dakota | 16.7% | 
                            
                                
                                    | 16 | Grant County, South Dakota | 16.6% | 
                            
                                
                                    | 17 | Codington County, South Dakota | 16.1% | 
                            
                                
                                    | 18 | Lake County, South Dakota | 14.4% | 
                            
                                
                                    | 19 | Walworth County, South Dakota | 14.2% | 
                            
                                
                                    | 20 | Tripp County, South Dakota | 14.0% | 
                            
                                
                                    | 21 | Spink County, South Dakota | 12.0% | 
                            
                                
                                    | 22 | Perkins County, South Dakota | 11.4% | 
                            
                                
                                    | 23 | Moody County, South Dakota | 10.3% | 
                            
                                
                                    | 24 | Day County, South Dakota | 10.1% | 
                            
                                
                                    | 25 | Meade County, South Dakota | 10.1% | 
                            
                                
                                    | 26 | Kingsbury County, South Dakota | 10.0% | 
                            
                                
                                    | 27 | Faulk County, South Dakota | 9.8% | 
                            
                                
                                    | 28 | Clark County, South Dakota | 9.7% | 
                            
                                
                                    | 29 | McCook County, South Dakota | 9.7% | 
                            
                                
                                    | 30 | Buffalo County, South Dakota | 9.6% | 
                            
                                
                                    | 31 | McPherson County, South Dakota | 9.4% | 
                            
                                
                                    | 32 | Bon Homme County, South Dakota | 9.2% | 
                            
                                
                                    | 33 | Hand County, South Dakota | 9.1% | 
                            
                                
                                    | 34 | Deuel County, South Dakota | 9.0% | 
                            
                                
                                    | 35 | Bennett County, South Dakota | 9.0% | 
                            
                                
                                    | 36 | Ziebach County, South Dakota | 9.0% | 
                            
                                
                                    | 37 | Charles Mix County, South Dakota | 8.9% | 
                            
                                
                                    | 38 | Jerauld County, South Dakota | 8.7% | 
                            
                                
                                    | 39 | Marshall County, South Dakota | 8.5% | 
                            
                                
                                    | 40 | Hutchinson County, South Dakota | 8.5% | 
                            
                                
                                    | 41 | Jackson County, South Dakota | 8.2% | 
                            
                                
                                    | 42 | Turner County, South Dakota | 8.2% | 
                            
                                
                                    | 43 | Douglas County, South Dakota | 8.1% | 
                            
                                
                                    | 44 | Miner County, South Dakota | 7.9% | 
                            
                                
                                    | 45 | Gregory County, South Dakota | 7.6% | 
                            
                                
                                    | 46 | Lyman County, South Dakota | 7.5% | 
                            
                                
                                    | 47 | Butte County, South Dakota | 7.4% | 
                            
                                
                                    | 48 | Corson County, South Dakota | 7.2% | 
                            
                                
                                    | 49 | Stanley County, South Dakota | 7.1% | 
                            
                                
                                    | 50 | Jones County, South Dakota | 6.8% | 
                            
                                
                                    | 51 | Roberts County, South Dakota | 6.6% | 
                            
                                
                                    | 52 | Sanborn County, South Dakota | 6.5% | 
                            
                                
                                    | 53 | Edmunds County, South Dakota | 6.4% | 
                            
                                
                                    | 54 | Custer County, South Dakota | 6.1% | 
                            
                                
                                    | 55 | Dewey County, South Dakota | 6.0% | 
                            
                                
                                    | 56 | Sully County, South Dakota | 5.8% | 
                            
                                
                                    | 57 | Hamlin County, South Dakota | 5.8% | 
                            
                                
                                    | 58 | Potter County, South Dakota | 5.3% | 
                            
                                
                                    | 59 | Haakon County, South Dakota | 4.4% | 
                            
                                
                                    | 60 | Aurora County, South Dakota | 4.2% | 
                            
                                
                                    | 61 | Shannon County, South Dakota | 3.9% | 
                            
                                
                                    | 62 | Hanson County, South Dakota | 3.9% | 
                            
                                
                                    | 63 | Mellette County, South Dakota | 3.9% | 
                            
                                
                                    | 64 | Hyde County, South Dakota | 3.5% | 
                            
                                
                                    | 65 | Harding County, South Dakota | 3.0% | 
                            
                                
                                    | 66 | Campbell County, South Dakota | 2.9% |