| Rank | County | Percentage with High School Diploma | 
                            
                                
                                    | 1 | Logan County, Nebraska | 96.8% | 
                            
                                
                                    | 2 | Blaine County, Nebraska | 96.7% | 
                            
                                
                                    | 3 | Wheeler County, Nebraska | 96.6% | 
                            
                                
                                    | 4 | Arthur County, Nebraska | 95.2% | 
                            
                                
                                    | 5 | Gosper County, Nebraska | 95.0% | 
                            
                                
                                    | 6 | Sioux County, Nebraska | 94.6% | 
                            
                                
                                    | 7 | Sarpy County, Nebraska | 94.6% | 
                            
                                
                                    | 8 | Cheyenne County, Nebraska | 94.4% | 
                            
                                
                                    | 9 | Hooker County, Nebraska | 94.1% | 
                            
                                
                                    | 10 | Hamilton County, Nebraska | 94.0% | 
                            
                                
                                    | 11 | Frontier County, Nebraska | 94.0% | 
                            
                                
                                    | 12 | Cass County, Nebraska | 93.9% | 
                            
                                
                                    | 13 | Washington County, Nebraska | 93.4% | 
                            
                                
                                    | 14 | Lancaster County, Nebraska | 93.4% | 
                            
                                
                                    | 15 | Grant County, Nebraska | 93.4% | 
                            
                                
                                    | 16 | Phelps County, Nebraska | 93.3% | 
                            
                                
                                    | 17 | Dundy County, Nebraska | 93.3% | 
                            
                                
                                    | 18 | Fillmore County, Nebraska | 93.3% | 
                            
                                
                                    | 19 | Thomas County, Nebraska | 93.3% | 
                            
                                
                                    | 20 | Saunders County, Nebraska | 93.1% | 
                            
                                
                                    | 21 | Perkins County, Nebraska | 93.0% | 
                            
                                
                                    | 22 | Buffalo County, Nebraska | 92.4% | 
                            
                                
                                    | 23 | Seward County, Nebraska | 92.4% | 
                            
                                
                                    | 24 | Custer County, Nebraska | 92.3% | 
                            
                                
                                    | 25 | Loup County, Nebraska | 92.3% | 
                            
                                
                                    | 26 | Banner County, Nebraska | 92.3% | 
                            
                                
                                    | 27 | Lincoln County, Nebraska | 92.2% | 
                            
                                
                                    | 28 | Rock County, Nebraska | 92.2% | 
                            
                                
                                    | 29 | Red Willow County, Nebraska | 92.2% | 
                            
                                
                                    | 30 | Greeley County, Nebraska | 92.1% | 
                            
                                
                                    | 31 | Boone County, Nebraska | 92.1% | 
                            
                                
                                    | 32 | Keya Paha County, Nebraska | 92.0% | 
                            
                                
                                    | 33 | Wayne County, Nebraska | 92.0% | 
                            
                                
                                    | 34 | Nuckolls County, Nebraska | 92.0% | 
                            
                                
                                    | 35 | Kearney County, Nebraska | 92.0% | 
                            
                                
                                    | 36 | Stanton County, Nebraska | 92.0% | 
                            
                                
                                    | 37 | Polk County, Nebraska | 91.8% | 
                            
                                
                                    | 38 | McPherson County, Nebraska | 91.6% | 
                            
                                
                                    | 39 | Antelope County, Nebraska | 91.5% | 
                            
                                
                                    | 40 | Valley County, Nebraska | 91.5% | 
                            
                                
                                    | 41 | Cherry County, Nebraska | 91.4% | 
                            
                                
                                    | 42 | Nemaha County, Nebraska | 91.4% | 
                            
                                
                                    | 43 | Franklin County, Nebraska | 91.3% | 
                            
                                
                                    | 44 | Richardson County, Nebraska | 91.2% | 
                            
                                
                                    | 45 | Garden County, Nebraska | 91.2% | 
                            
                                
                                    | 46 | Cedar County, Nebraska | 91.1% | 
                            
                                
                                    | 47 | York County, Nebraska | 91.1% | 
                            
                                
                                    | 48 | Harlan County, Nebraska | 91.0% | 
                            
                                
                                    | 49 | Pierce County, Nebraska | 91.0% | 
                            
                                
                                    | 50 | Garfield County, Nebraska | 90.9% | 
                            
                                
                                    | 51 | Gage County, Nebraska | 90.9% | 
                            
                                
                                    | 52 | Howard County, Nebraska | 90.8% | 
                            
                                
                                    | 53 | Dawes County, Nebraska | 90.6% | 
                            
                                
                                    | 54 | Butler County, Nebraska | 90.5% | 
                            
                                
                                    | 55 | Burt County, Nebraska | 90.5% | 
                            
                                
                                    | 56 | Deuel County, Nebraska | 90.4% | 
                            
                                
                                    | 57 | Webster County, Nebraska | 90.3% | 
                            
                                
                                    | 58 | Sheridan County, Nebraska | 90.2% | 
                            
                                
                                    | 59 | Hitchcock County, Nebraska | 90.2% | 
                            
                                
                                    | 60 | Brown County, Nebraska | 90.1% | 
                            
                                
                                    | 61 | Chase County, Nebraska | 90.1% | 
                            
                                
                                    | 62 | Holt County, Nebraska | 90.1% | 
                            
                                
                                    | 63 | Platte County, Nebraska | 90.0% | 
                            
                                
                                    | 64 | Merrick County, Nebraska | 89.9% | 
                            
                                
                                    | 65 | Douglas County, Nebraska | 89.9% | 
                            
                                
                                    | 66 | Otoe County, Nebraska | 89.7% | 
                            
                                
                                    | 67 | Pawnee County, Nebraska | 89.5% | 
                            
                                
                                    | 68 | Jefferson County, Nebraska | 89.5% | 
                            
                                
                                    | 69 | Hayes County, Nebraska | 89.4% | 
                            
                                
                                    | 70 | Adams County, Nebraska | 89.4% | 
                            
                                
                                    | 71 | Box Butte County, Nebraska | 89.2% | 
                            
                                
                                    | 72 | Keith County, Nebraska | 89.2% | 
                            
                                
                                    | 73 | Clay County, Nebraska | 89.1% | 
                            
                                
                                    | 74 | Boyd County, Nebraska | 89.0% | 
                            
                                
                                    | 75 | Thayer County, Nebraska | 89.0% | 
                            
                                
                                    | 76 | Kimball County, Nebraska | 88.4% | 
                            
                                
                                    | 77 | Knox County, Nebraska | 88.1% | 
                            
                                
                                    | 78 | Nance County, Nebraska | 87.7% | 
                            
                                
                                    | 79 | Cuming County, Nebraska | 87.7% | 
                            
                                
                                    | 80 | Sherman County, Nebraska | 87.5% | 
                            
                                
                                    | 81 | Madison County, Nebraska | 86.9% | 
                            
                                
                                    | 82 | Furnas County, Nebraska | 86.7% | 
                            
                                
                                    | 83 | Scotts Bluff County, Nebraska | 86.5% | 
                            
                                
                                    | 84 | Johnson County, Nebraska | 86.0% | 
                            
                                
                                    | 85 | Dixon County, Nebraska | 85.7% | 
                            
                                
                                    | 86 | Thurston County, Nebraska | 85.5% | 
                            
                                
                                    | 87 | Dodge County, Nebraska | 85.2% | 
                            
                                
                                    | 88 | Morrill County, Nebraska | 85.2% | 
                            
                                
                                    | 89 | Saline County, Nebraska | 83.8% | 
                            
                                
                                    | 90 | Hall County, Nebraska | 83.4% | 
                            
                                
                                    | 91 | Dawson County, Nebraska | 75.9% | 
                            
                                
                                    | 92 | Dakota County, Nebraska | 73.0% | 
                            
                                
                                    | 93 | Colfax County, Nebraska | 71.2% |