| Rank | County | Percentage of Residents Living In Multi-Unit Buildings | 
                            
                                
                                    | 1 | Summit County, Colorado | 58.3% | 
                            
                                
                                    | 2 | Denver County, Colorado | 45.5% | 
                            
                                
                                    | 3 | San Miguel County, Colorado | 40.2% | 
                            
                                
                                    | 4 | Eagle County, Colorado | 39.4% | 
                            
                                
                                    | 5 | Pitkin County, Colorado | 37.5% | 
                            
                                
                                    | 6 | Arapahoe County, Colorado | 34.1% | 
                            
                                
                                    | 7 | Grand County, Colorado | 31.7% | 
                            
                                
                                    | 8 | San Juan County, Colorado | 30.7% | 
                            
                                
                                    | 9 | Routt County, Colorado | 29.9% | 
                            
                                
                                    | 10 | Gunnison County, Colorado | 29.2% | 
                            
                                
                                    | 11 | Boulder County, Colorado | 28.5% | 
                            
                                
                                    | 12 | Jefferson County, Colorado | 24.9% | 
                            
                                
                                    | 13 | Adams County, Colorado | 23.9% | 
                            
                                
                                    | 14 | Broomfield County, Colorado | 22.8% | 
                            
                                
                                    | 15 | El Paso County, Colorado | 22.2% | 
                            
                                
                                    | 16 | Larimer County, Colorado | 21.3% | 
                            
                                
                                    | 17 | Garfield County, Colorado | 20.2% | 
                            
                                
                                    | 18 | La Plata County, Colorado | 17.5% | 
                            
                                
                                    | 19 | Alamosa County, Colorado | 17.4% | 
                            
                                
                                    | 20 | Lake County, Colorado | 16.5% | 
                            
                                
                                    | 21 | Weld County, Colorado | 16.2% | 
                            
                                
                                    | 22 | Pueblo County, Colorado | 15.8% | 
                            
                                
                                    | 23 | Rio Blanco County, Colorado | 15.5% | 
                            
                                
                                    | 24 | Douglas County, Colorado | 15.5% | 
                            
                                
                                    | 25 | Mesa County, Colorado | 15.4% | 
                            
                                
                                    | 26 | Prowers County, Colorado | 14.9% | 
                            
                                
                                    | 27 | Morgan County, Colorado | 13.9% | 
                            
                                
                                    | 28 | Archuleta County, Colorado | 13.7% | 
                            
                                
                                    | 29 | Moffat County, Colorado | 13.3% | 
                            
                                
                                    | 30 | Gilpin County, Colorado | 13.2% | 
                            
                                
                                    | 31 | Otero County, Colorado | 13.2% | 
                            
                                
                                    | 32 | Fremont County, Colorado | 12.0% | 
                            
                                
                                    | 33 | Clear Creek County, Colorado | 11.8% | 
                            
                                
                                    | 34 | Lincoln County, Colorado | 11.7% | 
                            
                                
                                    | 35 | Las Animas County, Colorado | 11.1% | 
                            
                                
                                    | 36 | Logan County, Colorado | 11.1% | 
                            
                                
                                    | 37 | Sedgwick County, Colorado | 10.4% | 
                            
                                
                                    | 38 | Rio Grande County, Colorado | 9.5% | 
                            
                                
                                    | 39 | Huerfano County, Colorado | 9.5% | 
                            
                                
                                    | 40 | Montrose County, Colorado | 9.2% | 
                            
                                
                                    | 41 | Montezuma County, Colorado | 9.0% | 
                            
                                
                                    | 42 | Ouray County, Colorado | 8.5% | 
                            
                                
                                    | 43 | Kit Carson County, Colorado | 8.3% | 
                            
                                
                                    | 44 | Saguache County, Colorado | 7.7% | 
                            
                                
                                    | 45 | Phillips County, Colorado | 7.7% | 
                            
                                
                                    | 46 | Bent County, Colorado | 7.4% | 
                            
                                
                                    | 47 | Chaffee County, Colorado | 7.4% | 
                            
                                
                                    | 48 | Yuma County, Colorado | 6.4% | 
                            
                                
                                    | 49 | Jackson County, Colorado | 6.2% | 
                            
                                
                                    | 50 | Delta County, Colorado | 5.6% | 
                            
                                
                                    | 51 | Cheyenne County, Colorado | 5.3% | 
                            
                                
                                    | 52 | Washington County, Colorado | 5.3% | 
                            
                                
                                    | 53 | Crowley County, Colorado | 5.1% | 
                            
                                
                                    | 54 | Conejos County, Colorado | 4.7% | 
                            
                                
                                    | 55 | Custer County, Colorado | 4.6% | 
                            
                                
                                    | 56 | Baca County, Colorado | 4.4% | 
                            
                                
                                    | 57 | Costilla County, Colorado | 4.3% | 
                            
                                
                                    | 58 | Teller County, Colorado | 4.2% | 
                            
                                
                                    | 59 | Kiowa County, Colorado | 3.2% | 
                            
                                
                                    | 60 | Hinsdale County, Colorado | 3.1% | 
                            
                                
                                    | 61 | Dolores County, Colorado | 2.0% | 
                            
                                
                                    | 62 | Elbert County, Colorado | 1.5% | 
                            
                                
                                    | 63 | Park County, Colorado | 1.0% | 
                            
                                
                                    | 64 | Mineral County, Colorado | 0.2% |