Ranking of Nebraska Counties By Percentage of Population Aged 25 years and above with an Educational attainment of Less than High School Diploma 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 Less than High School Diploma was 8.28%. Among all Nebraska counties, Colfax County had the highest percentage of its population (aged 25 years and above) with an educational attainment of Less than High School Diploma (26.57%), followed by Dawson County (22.28%), and Dakota County (22.07%).

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.

Ranking of Nebraska Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Colfax County
Dawson County
Dakota County
Saline County
Dixon County
Hall County
Pawnee County
Chase County
Kimball County
Johnson County
Ranking of Nebraska Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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Rank County Percentage of Population (Aged 25yrs+) (%)
1 Colfax County 26.57
2 Dawson County 22.28
3 Dakota County 22.07
4 Saline County 19.81
5 Dixon County 15.58
6 Hall County 15.10
7 Pawnee County 14.77
8 Chase County 12.10
9 Kimball County 12.06
10 Johnson County 11.52
11 Platte County 11.43
12 Dodge County 10.76
13 Scotts Bluff County 10.64
14 Cuming County 10.63
15 Perkins County 10.53
16 Keith County 10.40
17 Sheridan County 10.14
18 Furnas County 9.59
19 Deuel County 9.54
20 Box Butte County 9.47
20 Thurston County 9.47
21 Dundy County 9.42
22 Morrill County 9.37
23 Nemaha County 9.15
24 Gage County 9.10
25 Burt County 8.94
26 Douglas County 8.81
27 Polk County 8.72
28 Adams County 8.43
29 Sherman County 8.37
30 Jefferson County 8.31
31 Greeley County 8.27
32 Blaine County 7.96
33 Phelps County 7.95
34 Madison County 7.91
35 Nuckolls County 7.86
36 Buffalo County 7.70
36 Franklin County 7.70
37 Antelope County 7.68
38 Thomas County 7.64
39 Knox County 7.62
40 Red Willow County 7.34
41 Banner County 7.25
42 Hooker County 7.19
43 Harlan County 7.14
44 Grant County 7.07
45 Clay County 7.03
46 Otoe County 7.02
47 McPherson County 6.97
48 Nance County 6.95
49 Merrick County 6.85
50 Lancaster County 6.67
51 Hayes County 6.58
52 Thayer County 6.48
53 Richardson County 6.44
54 Holt County 6.40
55 Brown County 6.26
55 Cheyenne County 6.26
56 Butler County 6.25
57 Garden County 6.18
58 Valley County 6.11
59 Lincoln County 6.09
60 Gosper County 6.00
61 Frontier County 5.80
62 Cedar County 5.71
63 Cass County 5.69
63 York County 5.69
64 Webster County 5.65
65 Fillmore County 5.63
65 Seward County 5.63
66 Pierce County 5.62
67 Custer County 5.57
68 Saunders County 5.32
69 Sioux County 5.23
70 Stanton County 5.21
71 Boone County 5.18
71 Kearney County 5.18
72 Dawes County 5.09
73 Wheeler County 5.03
74 Hitchcock County 5.01
75 Boyd County 4.93
76 Howard County 4.69
76 Keya Paha County 4.69
77 Sarpy County 4.49
78 Arthur County 4.38
78 Washington County 4.38
79 Rock County 4.10
80 Logan County 4.07
81 Wayne County 3.82
82 Hamilton County 3.29
83 Garfield County 3.26
84 Cherry County 2.73
85 Loup County 1.68