Ranking of Nebraska Counties By 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 population of Nebraska (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 326,345. Among all Nebraska counties, Douglas County had the highest population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (78,693), followed by Lancaster County (41,872), and Sarpy County (25,261).

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 Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
Douglas County
Lancaster County
Sarpy County
Hall County
Dodge County
Buffalo County
Lincoln County
Madison County
Scotts Bluff County
Platte County
Ranking of Nebraska Counties By Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
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Rank County Number of People
1 Douglas County 78693
2 Lancaster County 41872
3 Sarpy County 25261
4 Hall County 12541
5 Dodge County 8946
6 Buffalo County 7597
7 Lincoln County 7331
8 Madison County 7263
9 Scotts Bluff County 6881
10 Platte County 6651
11 Gage County 5591
12 Adams County 5533
13 Cass County 5208
14 Dawson County 4811
15 Saunders County 4546
16 Dakota County 4336
17 Washington County 3840
18 Otoe County 3635
19 Seward County 3154
20 York County 2776
21 Saline County 2472
22 Box Butte County 2404
23 Custer County 2380
24 Red Willow County 2278
25 Richardson County 2261
26 Cheyenne County 2232
27 Butler County 2116
28 Cuming County 2114
29 Cedar County 2099
30 Holt County 2093
31 Knox County 2057
32 Merrick County 2036
33 Jefferson County 2010
34 Colfax County 1938
35 Hamilton County 1778
36 Howard County 1777
37 Keith County 1749
38 Phelps County 1744
39 Johnson County 1710
40 Burt County 1707
41 Pierce County 1672
42 Wayne County 1578
43 Antelope County 1543
44 Boone County 1507
45 Clay County 1487
46 Fillmore County 1454
47 Nemaha County 1317
48 Polk County 1316
49 Kearney County 1286
50 Thurston County 1266
51 Dixon County 1231
52 Cherry County 1223
53 Stanton County 1216
54 Sheridan County 1170
55 Thayer County 1164
56 Morrill County 1075
57 Dawes County 1055
58 Furnas County 1026
59 Nuckolls County 983
60 Kimball County 982
61 Valley County 859
62 Nance County 792
63 Webster County 789
64 Franklin County 786
65 Sherman County 762
66 Brown County 755
67 Pawnee County 714
68 Chase County 674
69 Harlan County 606
70 Boyd County 592
71 Hitchcock County 567
72 Greeley County 557
73 Frontier County 476
74 Perkins County 472
75 Garden County 428
76 Deuel County 405
77 Gosper County 366
78 Garfield County 346
79 Dundy County 297
80 Rock County 285
81 Sioux County 194
82 Hayes County 192
83 Keya Paha County 187
84 Hooker County 181
84 Loup County 181
85 Wheeler County 155
86 Logan County 139
87 Grant County 137
88 McPherson County 107
89 Thomas County 106
90 Blaine County 105
91 Banner County 84
92 Arthur County 77