Ranking of Nebraska Counties By Percentage of Population Aged 25 years and above with an Educational attainment of High School Graduate or Equivalent in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the population of Nebraska (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 25.59%. Among all Nebraska counties, Johnson County had the highest percentage of its population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (45.07%), followed by Boyd County (43.53%), and Boone County (40.21%).
The chart below shows the top 10 Nebraska counties, and the table below shows the ranking of all Nebraska counties.
You can see similar information for other educational attainments.
You can also see similar information for other states and for the United States.
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Related Topics: Nebraska ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Nebraska Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
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| Rank | County | Percentage of Population (Aged 25yrs+) (%) |
|---|---|---|
| 1 | Johnson County | 45.07 |
| 2 | Boyd County | 43.53 |
| 3 | Boone County | 40.21 |
| 4 | Howard County | 39.87 |
| 5 | Richardson County | 39.65 |
| 6 | Pawnee County | 39.36 |
| 7 | Jefferson County | 38.59 |
| 8 | Kimball County | 38.33 |
| 9 | Hooker County | 38.27 |
| 10 | Loup County | 37.95 |
| 11 | Merrick County | 37.48 |
| 12 | Cedar County | 37.35 |
| 13 | Brown County | 36.90 |
| 14 | Butler County | 36.86 |
| 15 | Gage County | 36.82 |
| 16 | Franklin County | 36.47 |
| 17 | Polk County | 36.42 |
| 18 | Blaine County | 36.33 |
| 19 | Burt County | 36.24 |
| 20 | Dodge County | 36.17 |
| 21 | Greeley County | 35.98 |
| 22 | Fillmore County | 35.72 |
| 23 | Knox County | 35.71 |
| 24 | Antelope County | 35.69 |
| 25 | Clay County | 35.55 |
| 26 | Sherman County | 35.05 |
| 27 | Thurston County | 34.64 |
| 28 | Cuming County | 34.35 |
| 29 | Morrill County | 34.26 |
| 30 | Pierce County | 34.05 |
| 31 | Nance County | 33.55 |
| 32 | Dakota County | 33.51 |
| 33 | Cheyenne County | 33.49 |
| 34 | Otoe County | 33.43 |
| 35 | Thayer County | 33.06 |
| 36 | Sheridan County | 32.95 |
| 37 | Nuckolls County | 32.61 |
| 38 | Dixon County | 32.57 |
| 39 | Webster County | 32.56 |
| 40 | Custer County | 32.44 |
| 41 | Garden County | 32.23 |
| 42 | Box Butte County | 32.20 |
| 43 | Cherry County | 32.14 |
| 44 | Red Willow County | 31.53 |
| 45 | Madison County | 31.42 |
| 46 | Furnas County | 31.22 |
| 47 | Hall County | 31.18 |
| 48 | Stanton County | 31.04 |
| 49 | Dawson County | 30.94 |
| 50 | Hitchcock County | 30.90 |
| 51 | Rock County | 30.71 |
| 52 | Saunders County | 30.39 |
| 53 | Lincoln County | 30.27 |
| 54 | Keya Paha County | 30.26 |
| 55 | Holt County | 30.16 |
| 56 | Valley County | 30.15 |
| 57 | Hayes County | 30.09 |
| 58 | Colfax County | 29.88 |
| 59 | Platte County | 29.53 |
| 60 | Deuel County | 29.50 |
| 61 | Grant County | 29.34 |
| 62 | York County | 29.02 |
| 63 | Kearney County | 28.95 |
| 64 | Wayne County | 28.94 |
| 65 | Keith County | 28.77 |
| 65 | Nemaha County | 28.77 |
| 66 | McPherson County | 28.69 |
| 67 | Cass County | 28.57 |
| 68 | Seward County | 28.54 |
| 69 | Scotts Bluff County | 28.41 |
| 70 | Phelps County | 28.30 |
| 71 | Frontier County | 27.89 |
| 72 | Saline County | 27.80 |
| 73 | Hamilton County | 27.63 |
| 74 | Harlan County | 27.22 |
| 74 | Washington County | 27.22 |
| 75 | Adams County | 27.16 |
| 76 | Chase County | 26.23 |
| 77 | Wheeler County | 26.01 |
| 78 | Gosper County | 25.85 |
| 79 | Sioux County | 25.36 |
| 80 | Garfield County | 25.05 |
| 81 | Buffalo County | 24.66 |
| 82 | Logan County | 24.60 |
| 83 | Arthur County | 24.06 |
| 84 | Perkins County | 24.02 |
| 85 | Thomas County | 23.82 |
| 86 | Dundy County | 22.74 |
| 87 | Lancaster County | 20.97 |
| 88 | Sarpy County | 20.85 |
| 89 | Douglas County | 20.84 |
| 90 | Dawes County | 20.72 |
| 91 | Banner County | 17.91 |
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