Ranking of Kansas 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 Kansas (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 25.67%. Among all Kansas counties, Atchison County had the highest percentage of its population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (42.43%), followed by Washington County (41.19%), and Jackson County (40.11%).

The chart below shows the top 10 Kansas counties, and the table below shows the ranking of all Kansas 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 Kansas Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
Atchison County
Washington County
Jackson County
Hamilton County
Smith County
Marshall County
Gove County
Jefferson County
Osage County
Linn County
Ranking of Kansas 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 Atchison County 42.43
2 Washington County 41.19
3 Jackson County 40.11
4 Hamilton County 39.88
5 Smith County 39.33
6 Marshall County 39.30
7 Gove County 39.28
8 Jefferson County 39.21
9 Osage County 39.04
10 Linn County 38.72
11 Woodson County 38.43
12 Stanton County 38.19
13 Harper County 38.18
14 Brown County 38.01
15 Elk County 37.77
16 Anderson County 37.67
17 Franklin County 37.52
18 Wilson County 37.40
19 Nemaha County 37.29
20 Wabaunsee County 37.25
21 Jewell County 37.20
22 Greenwood County 36.54
23 Allen County 36.18
24 Clay County 36.07
25 Morton County 35.95
26 Kearny County 35.69
27 Graham County 35.48
28 Morris County 35.35
29 Sumner County 34.95
30 Ellsworth County 34.50
31 Phillips County 34.38
32 Barber County 34.36
33 Doniphan County 34.33
34 Osborne County 34.21
35 Sheridan County 33.86
36 Edwards County 33.80
37 Cheyenne County 33.51
38 Chautauqua County 33.46
39 Decatur County 33.22
40 Ottawa County 33.21
41 Rooks County 33.18
42 Ness County 33.10
43 Pawnee County 32.99
44 Coffey County 32.53
45 Wyandotte County 32.29
46 Comanche County 32.20
47 Rush County 32.09
48 Cherokee County 32.05
49 Chase County 31.97
50 Montgomery County 31.95
51 Cloud County 31.73
52 Lyon County 31.64
53 Wichita County 31.57
54 Dickinson County 31.56
55 Bourbon County 31.55
56 Kingman County 31.41
56 Republic County 31.41
57 Labette County 31.17
58 Rice County 31.10
59 Logan County 31.08
60 Seward County 31.04
61 Stafford County 30.94
62 Sherman County 30.91
63 Norton County 30.80
64 Barton County 30.77
65 Neosho County 30.52
66 Shawnee County 30.36
67 Reno County 30.11
68 Miami County 30.08
69 Marion County 30.07
70 Cowley County 29.95
71 Saline County 29.54
72 Trego County 29.43
73 Pottawatomie County 29.25
74 Clark County 29.18
75 Crawford County 29.05
76 Kiowa County 29.02
77 Russell County 28.62
78 Lane County 28.43
79 Wallace County 28.04
80 Leavenworth County 28.02
81 Scott County 27.75
82 Rawlins County 27.60
83 Ellis County 27.46
84 Pratt County 27.09
85 Stevens County 26.86
86 Butler County 26.58
87 Sedgwick County 26.32
88 Lincoln County 26.19
89 McPherson County 25.99
90 Mitchell County 25.70
91 Geary County 24.79
92 Hodgeman County 24.39
93 Ford County 24.07
94 Finney County 24.02
95 Grant County 23.74
96 Greeley County 23.48
97 Haskell County 23.21
98 Harvey County 23.18
99 Thomas County 23.17
100 Meade County 22.98
101 Gray County 22.90
102 Douglas County 18.68
103 Riley County 16.09
104 Johnson County 13.77