Ranking of Mississippi 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 Mississippi (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 14.36%. Among all Mississippi counties, Issaquena County had the highest percentage of its population (aged 25 years and above) with an educational attainment of Less than High School Diploma (40.47%), followed by Benton County (25.61%), and Quitman County (25.40%).

The chart below shows the top 10 Mississippi counties, and the table below shows the ranking of all Mississippi 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 Mississippi Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Issaquena County
Benton County
Quitman County
Yazoo County
Sunflower County
Humphreys County
Chickasaw County
Noxubee County
Greene County
Holmes County
Ranking of Mississippi 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 Issaquena County 40.47
2 Benton County 25.61
3 Quitman County 25.40
4 Yazoo County 24.03
5 Sunflower County 23.98
6 Humphreys County 23.70
7 Chickasaw County 23.45
8 Noxubee County 22.78
9 Greene County 22.56
10 Holmes County 22.42
11 Montgomery County 22.32
12 Scott County 22.18
13 Tippah County 22.12
14 Tallahatchie County 21.90
15 Union County 21.73
16 Calhoun County 21.65
17 Jefferson County 21.54
18 Pontotoc County 21.18
19 Tishomingo County 21.09
20 Simpson County 20.58
21 Adams County 20.32
22 Sharkey County 20.18
23 Panola County 19.84
24 Bolivar County 19.61
25 Carroll County 19.30
26 Marshall County 19.12
27 Wayne County 19.04
28 Alcorn County 19.01
28 Washington County 19.01
29 Leake County 18.91
30 Neshoba County 18.89
31 Attala County 18.82
32 Coahoma County 18.79
32 Smith County 18.79
33 Wilkinson County 18.66
34 Kemper County 18.42
35 Claiborne County 18.39
36 Lawrence County 18.28
37 Choctaw County 18.26
38 Walthall County 18.23
39 Grenada County 17.95
40 Leflore County 17.46
41 Monroe County 16.71
42 Pike County 16.65
43 Clay County 16.56
44 Itawamba County 16.45
45 Marion County 16.36
46 Franklin County 16.32
47 Copiah County 16.21
48 Prentiss County 16.19
49 Tunica County 15.95
50 Newton County 15.87
51 Covington County 15.80
52 Jefferson Davis County 15.62
53 Stone County 15.58
54 Lauderdale County 15.40
55 Perry County 15.32
56 Webster County 15.25
57 George County 15.18
58 Clarke County 14.83
59 Yalobusha County 14.73
60 Amite County 14.60
61 Lincoln County 14.58
62 Winston County 14.32
63 Tate County 14.29
64 Pearl River County 14.15
65 Jones County 13.95
66 Lee County 13.75
67 Jasper County 13.06
68 Lowndes County 12.87
69 Warren County 12.03
70 Hinds County 11.89
71 Jackson County 11.28
72 Hancock County 11.10
73 Forrest County 11.00
74 Harrison County 10.97
75 Lamar County 10.40
76 Rankin County 10.20
77 Oktibbeha County 9.16
78 DeSoto County 8.90
79 Lafayette County 8.81
80 Madison County 7.79