Ranking of Michigan 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 Michigan (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 8.42%. Among all Michigan counties, Lake County had the highest percentage of its population (aged 25 years and above) with an educational attainment of Less than High School Diploma (18.04%), followed by Oscoda County (17.88%), and Clare County (13.50%).

The chart below shows the top 10 Michigan counties, and the table below shows the ranking of all Michigan 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 Michigan Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Lake County
Oscoda County
Clare County
St. Joseph County
Ogemaw County
Wayne County
Kalkaska County
Montmorency County
Van Buren County
Gladwin County
Ranking of Michigan 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 Lake County 18.04
2 Oscoda County 17.88
3 Clare County 13.50
4 St. Joseph County 13.17
5 Ogemaw County 12.91
6 Wayne County 12.39
7 Kalkaska County 11.92
8 Montmorency County 11.89
9 Van Buren County 11.70
10 Gladwin County 11.67
11 Oceana County 11.63
12 Montcalm County 11.52
13 Osceola County 11.21
14 Arenac County 11.20
15 Branch County 11.13
16 Cass County 10.93
17 Iosco County 10.55
18 Hillsdale County 10.25
19 Newaygo County 10.24
20 Sanilac County 10.04
21 Missaukee County 9.84
22 Schoolcraft County 9.82
23 Macomb County 9.61
24 Alcona County 9.57
25 Wexford County 9.52
26 Tuscola County 9.48
27 Saginaw County 9.45
28 Cheboygan County 9.28
29 Berrien County 9.23
30 Presque Isle County 9.21
31 Roscommon County 9.17
32 Huron County 9.03
33 Calhoun County 8.98
34 Baraga County 8.93
35 Bay County 8.90
36 Genesee County 8.85
37 Manistee County 8.82
38 Allegan County 8.69
39 Crawford County 8.64
40 Lenawee County 8.55
40 Mackinac County 8.55
41 Monroe County 8.50
42 Ionia County 8.49
43 Alger County 8.41
44 Lapeer County 8.31
45 Muskegon County 8.30
46 Jackson County 8.17
47 Gratiot County 8.16
47 St. Clair County 8.16
48 Shiawassee County 7.96
49 Kent County 7.90
50 Chippewa County 7.85
51 Iron County 7.73
52 Luce County 7.61
53 Mecosta County 7.57
54 Isabella County 7.48
55 Alpena County 7.31
56 Delta County 7.28
57 Houghton County 7.09
58 Benzie County 7.02
59 Menominee County 6.98
60 Antrim County 6.88
61 Ontonagon County 6.73
62 Mason County 6.69
63 Barry County 6.58
64 Otsego County 6.40
65 Ingham County 6.30
66 Ottawa County 6.23
67 Charlevoix County 6.02
68 Gogebic County 5.84
69 Kalamazoo County 5.70
70 Oakland County 5.35
71 Midland County 5.31
72 Eaton County 5.08
73 Grand Traverse County 4.84
74 Clinton County 4.74
75 Marquette County 4.71
76 Emmet County 4.62
77 Dickinson County 4.34
78 Washtenaw County 4.28
79 Livingston County 4.05
80 Leelanau County 3.65
81 Keweenaw County 3.57