| 1 | Slope County, North Dakota | 84 | 91.6 | 87.8 | 24.2 |
| 2 | Billings County, North Dakota | 83.8 | 91.9 | 84.5 | 36.4 |
| 3 | Oliver County, North Dakota | 82.5 | 84.6 | 83.6 | 33.6 |
| 4 | Sheridan County, North Dakota | 82.5 | 82.6 | 93.9 | 27.4 |
| 5 | Borden County, Texas | 82.5 | 89.1 | 91.7 | 25.3 |
| 6 | Burke County, North Dakota | 81.5 | 83.1 | 85.4 | 46.3 |
| 7 | Loup County, Nebraska | 81.1 | 79.8 | 85.7 | 22.7 |
| 8 | Glasscock County, Texas | 81.1 | 89.2 | 87.8 | 53.1 |
| 9 | Rich County, Utah | 81.1 | 94.1 | 82.2 | 33.6 |
| 10 | Judith Basin County, Montana | 81 | 89.5 | 90.6 | 19.6 |
| 11 | Daggett County, Utah | 81 | 88.7 | 84.7 | 21.7 |
| 12 | Greenlee County, Arizona | 80.9 | 92.2 | 92.5 | 32.5 |
| 13 | Harding County, South Dakota | 80.9 | 76 | 89.9 | 32.2 |
| 14 | Wheeler County, Nebraska | 80.8 | 76.6 | 90.5 | 19.9 |
| 15 | McCone County, Montana | 80.7 | 83.3 | 89.3 | 30.3 |
| 16 | Petroleum County, Montana | 80.5 | 81.9 | 85.5 | 22.1 |
| 17 | Carter County, Montana | 80.1 | 89.8 | 86.5 | 17.4 |
| 18 | Grant County, Nebraska | 79.9 | 81.2 | 81.7 | 28.5 |
| 19 | Mineral County, Colorado | 79.4 | 92.3 | 77.3 | 17.6 |
| 20 | Hinsdale County, Colorado | 79.3 | 94 | 76.3 | 25.4 |
| 21 | Harding County, New Mexico | 79.3 | 91.6 | 88.7 | 10.3 |
| 22 | Dundy County, Nebraska | 79.2 | 79.2 | 88.7 | 20.3 |
| 23 | Thomas County, Nebraska | 79.2 | 71.7 | 87.8 | 30.8 |
| 24 | Divide County, North Dakota | 79.2 | 85.5 | 79.9 | 41.7 |
| 25 | Bear Lake County, Idaho | 79.1 | 89.5 | 84.2 | 27.3 |
| 26 | Custer County, Colorado | 79 | 92.1 | 78.2 | 30.8 |
| 27 | Rock County, Nebraska | 79 | 73.7 | 88.1 | 20.9 |
| 28 | Bland County, Virginia | 79 | 86.7 | 89.2 | 23.5 |
| 29 | Steele County, North Dakota | 78.9 | 75.5 | 87.2 | 35.8 |
| 30 | Loving County, Texas | 78.9 | N/A | N/A | 16.7 |
| 31 | Highland County, Virginia | 78.8 | 86.4 | 84.2 | 24.5 |
| 32 | Arthur County, Nebraska | 78.7 | 78.8 | 80.7 | 27.4 |
| 33 | Griggs County, North Dakota | 78.7 | 76.8 | 87.7 | 25.6 |
| 34 | Logan County, Nebraska | 78.6 | 74.1 | 81 | 30.2 |
| 35 | McHenry County, North Dakota | 78.6 | 83.6 | 84.4 | 36 |
| 36 | Kiowa County, Colorado | 78.5 | 86 | 82.4 | 20.2 |
| 37 | Los Alamos County, New Mexico | 78.5 | 86.2 | 59.6 | 76.8 |
| 38 | Kidder County, North Dakota | 78.5 | 83.8 | 85.2 | 23.8 |
| 39 | Sully County, South Dakota | 78.5 | 78.2 | 80.2 | 29.2 |
| 40 | Nelson County, North Dakota | 78.4 | 79.7 | 88 | 27.8 |
| 41 | Cheyenne County, Colorado | 78.3 | 89.3 | 83.1 | 27.6 |
| 42 | Cameron Parish, Louisiana | 78.3 | 89.8 | 89 | 30.7 |
| 43 | Garfield County, Montana | 78.3 | 83.8 | 85 | 23.7 |
| 44 | McPherson County, Nebraska | 78.3 | 72.4 | 86.5 | 23.4 |
| 45 | Floyd County, Virginia | 78.3 | 87.6 | 84.4 | 23.5 |
| 46 | Garfield County, Washington | 78.3 | 85.1 | 84 | 24.1 |
| 47 | San Juan County, Colorado | 78.2 | 94 | 77.1 | 31.6 |
| 48 | Wilkin County, Minnesota | 78.1 | 80.9 | 84.8 | 28.8 |
| 49 | Jerauld County, South Dakota | 78.1 | 75.4 | 87.4 | 32.6 |
| 50 | Ouray County, Colorado | 78 | 94.5 | 68.3 | 38.6 |
| 51 | Warren County, Indiana | 78 | 87.8 | 80.6 | 32.1 |
| 52 | Jones County, South Dakota | 78 | 69.7 | 85.9 | 25.6 |
| 53 | Golden Valley County, Montana | 77.9 | 88 | 84.5 | 20.8 |
| 54 | Tucker County, West Virginia | 77.9 | 92.3 | 87.5 | 18.3 |
| 55 | Keweenaw County, Michigan | 77.8 | 75.8 | 85.9 | 18.6 |
| 56 | Copper River Census Area, Alaska | 77.7 | 100 | 80.6 | 32.4 |
| 57 | Red Lake County, Minnesota | 77.7 | 75.3 | 83.6 | 34 |
| 58 | Golden Valley County, North Dakota | 77.7 | 76.1 | 85 | 33.3 |
| 59 | Butte County, Idaho | 77.6 | 88.1 | 90.2 | 11.6 |
| 60 | Deuel County, South Dakota | 77.6 | 79.2 | 84.6 | 35.3 |
| 61 | Hand County, South Dakota | 77.6 | 76.9 | 87.2 | 30.4 |
| 62 | LaSalle Parish, Louisiana | 77.5 | 90.4 | 87.8 | 27.2 |
| 63 | Daniels County, Montana | 77.5 | 78 | 86.5 | 21.3 |
| 64 | Lake of the Woods County, Minnesota | 77.4 | 82.4 | 80 | 29.1 |
| 65 | Fallon County, Montana | 77.4 | 86.1 | 81.2 | 30.6 |
| 66 | LaMoure County, North Dakota | 77.4 | 75 | 87.2 | 29.3 |
| 67 | Caribou County, Idaho | 77.3 | 85.3 | 82.9 | 26.9 |
| 68 | Stevens County, Minnesota | 77.3 | 79.6 | 79.9 | 29.8 |
| 69 | Bottineau County, North Dakota | 77.3 | 82.6 | 83.5 | 37.9 |
| 70 | Bowman County, North Dakota | 77.3 | 81.1 | 81.6 | 38.1 |
| 71 | Renville County, North Dakota | 77.3 | 83.2 | 80.7 | 33.2 |
| 72 | Emery County, Utah | 77.3 | 85.8 | 86.3 | 29.1 |
| 73 | Bath County, Virginia | 77.3 | 90.9 | 83.5 | 23.7 |
| 74 | Doddridge County, West Virginia | 77.3 | 89.1 | 87.7 | 23.3 |
| 75 | Lincoln County, Colorado | 77.2 | 91.5 | 80.6 | 18.8 |
| 76 | Rock County, Minnesota | 77.2 | 82 | 81.3 | 29.5 |
| 77 | Treasure County, Montana | 77.2 | 84.9 | 77.1 | 31.1 |
| 78 | Coosa County, Alabama | 77.1 | 94.6 | 87.5 | 20.6 |
| 79 | Oneida County, Idaho | 77.1 | 87.8 | 75.9 | 30.8 |
| 80 | Dunn County, North Dakota | 77.1 | 85.3 | 79.4 | 45.2 |
| 81 | West Carroll Parish, Louisiana | 77 | 96.5 | 89.3 | 15.1 |
| 82 | Craig County, Virginia | 77 | 89.5 | 82 | 27.6 |
| 83 | Hayes County, Nebraska | 76.9 | 66.6 | 90.3 | 22.8 |
| 84 | White Pine County, Nevada | 76.9 | 88.4 | 83.6 | 30.6 |
| 85 | Calhoun County, West Virginia | 76.9 | 91.1 | 95.2 | 10.4 |
| 86 | Lamar County, Alabama | 76.8 | 96.2 | 91.3 | 14.4 |
| 87 | Franklin County, Idaho | 76.8 | 88.3 | 80.6 | 26.5 |
| 88 | Osage County, Missouri | 76.8 | 85.6 | 86.4 | 32.6 |
| 89 | Sweet Grass County, Montana | 76.8 | 88.4 | 76.1 | 28.7 |
| 90 | Wells County, North Dakota | 76.8 | 73 | 87.5 | 23.4 |
| 91 | Murray County, Minnesota | 76.7 | 80.7 | 82 | 32 |
| 92 | Mathews County, Virginia | 76.7 | 90.4 | 75.7 | 32.7 |
| 93 | Kittson County, Minnesota | 76.6 | 76.5 | 83.7 | 28.8 |
| 94 | Catron County, New Mexico | 76.6 | 92.7 | 89.1 | 13.7 |
| 95 | Piute County, Utah | 76.6 | 90.2 | 84.1 | 12.5 |
| 96 | Wayne County, Utah | 76.6 | 92.4 | 79.9 | 29.1 |
| 97 | Lexington city, Virginia | 76.6 | 78 | 76.5 | 41.9 |
| 98 | Gilmer County, West Virginia | 76.6 | 88 | 89.5 | 16.7 |
| 99 | Clay County, Alabama | 76.5 | 95.9 | 90.2 | 17.2 |
| 100 | Martin County, Indiana | 76.5 | 87.3 | 85.5 | 26 |