Ranking of Michigan Counties By Number of People and Percentage of Population With No Health Insurance Coverage in 2021 (ACS-5Yrs)

Updated on October 27, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the Michigan population without a health insurance coverage was 5.32% (i.e. 529,451 people). Percentagewise, among all Michigan counties, Oscoda County had the highest percentage of its population with no health insurance coverage (15.48%), followed by Clare County (11.67%), and Branch County (10.94%).

In numerical terms, Wayne County had the highest number of people without a health insurance coverage (106,347), followed by Oakland County (52,204), and Macomb County (45,962).

The charts below shows the top 10 counties by the number of people and percentage of the population without a health insurance coverage. The tables below shows the ranking for all Michigan counties.

You can see similar information for other types of health insurance coverages.

You can also see similar information for other states.

Ranking of Michigan Counties By Percentage of Population With No Health Insurance Coverage in 2021
Oscoda County
Clare County
Branch County
Mackinac County
Osceola County
Oceana County
Missaukee County
St. Joseph County
Kalkaska County
Isabella County
Ranking of Michigan Counties By Number of People With No Health Insurance Coverage in 2021
Wayne County
Oakland County
Macomb County
Kent County
Genesee County
Ingham County
Kalamazoo County
Washtenaw County
Ottawa County
Berrien County
Ranking of Michigan Counties By Percentage of Population With No Health Insurance Coverage in 2021
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Rank County Percentage of Population (%)
1 Oscoda County 15.48
2 Clare County 11.67
3 Branch County 10.94
4 Mackinac County 10.72
5 Osceola County 10.65
6 Oceana County 9.66
7 Missaukee County 9.13
8 St. Joseph County 9.12
9 Kalkaska County 8.66
10 Isabella County 8.11
11 Sanilac County 8.08
12 Van Buren County 8.04
13 Keweenaw County 7.96
14 Gladwin County 7.90
15 Houghton County 7.60
16 Otsego County 7.45
17 Montcalm County 7.35
18 Lapeer County 7.26
19 Hillsdale County 7.25
20 Montmorency County 7.18
20 Schoolcraft County 7.18
21 Newaygo County 7.08
22 Iron County 7.07
23 Charlevoix County 6.91
24 Mecosta County 6.87
25 Iosco County 6.81
26 Gogebic County 6.79
27 Emmet County 6.76
28 Lake County 6.72
29 Wexford County 6.61
30 Presque Isle County 6.56
31 Cheboygan County 6.51
32 Berrien County 6.38
33 Chippewa County 6.36
34 Benzie County 6.29
35 Arenac County 6.25
36 Ionia County 6.24
37 Antrim County 6.21
38 Huron County 6.15
39 Mason County 6.04
40 Roscommon County 5.99
41 Wayne County 5.98
42 Bay County 5.90
43 Grand Traverse County 5.75
44 Lenawee County 5.69
45 Cass County 5.67
46 Jackson County 5.65
47 Delta County 5.55
48 Calhoun County 5.51
49 Genesee County 5.36
50 Baraga County 5.34
50 Ontonagon County 5.34
51 Macomb County 5.27
52 Alpena County 5.26
53 Kent County 5.24
54 Leelanau County 5.22
55 Crawford County 5.16
55 Kalamazoo County 5.16
56 St. Clair County 5.14
57 Ogemaw County 5.10
58 Tuscola County 5.09
59 Manistee County 5.08
60 Alger County 5.05
61 Gratiot County 5.01
62 Dickinson County 4.95
63 Alcona County 4.91
63 Allegan County 4.91
64 Muskegon County 4.89
65 Ingham County 4.83
66 Menominee County 4.82
67 Shiawassee County 4.72
68 Barry County 4.66
69 Eaton County 4.44
70 Marquette County 4.31
71 Saginaw County 4.26
72 Oakland County 4.12
73 Monroe County 3.84
74 Luce County 3.82
75 Clinton County 3.74
76 Midland County 3.73
77 Ottawa County 3.53
78 Washtenaw County 3.42
79 Livingston County 3.41
Ranking of Michigan Counties By Number of People With NO Health Insurance Coverage in 2021
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Rank County Number of People
1 Wayne County 106347
2 Oakland County 52204
3 Macomb County 45962
4 Kent County 34060
5 Genesee County 21689
6 Ingham County 13704
7 Kalamazoo County 13373
8 Washtenaw County 12601
9 Ottawa County 10323
10 Berrien County 9777
11 Jackson County 8628
12 Muskegon County 8371
13 St. Clair County 8157
14 Saginaw County 7970
15 Calhoun County 7307
16 Livingston County 6558
17 Lapeer County 6315
18 Bay County 6093
19 Van Buren County 6027
20 Monroe County 5875
21 Allegan County 5823
22 St. Joseph County 5502
23 Lenawee County 5476
24 Grand Traverse County 5387
25 Isabella County 5285
26 Eaton County 4802
27 Montcalm County 4701
28 Branch County 4669
29 Ionia County 3947
30 Clare County 3564
31 Newaygo County 3481
32 Hillsdale County 3285
33 Sanilac County 3274
34 Shiawassee County 3198
35 Midland County 3090
36 Clinton County 2933
37 Cass County 2922
38 Barry County 2870
39 Houghton County 2822
40 Marquette County 2791
41 Mecosta County 2737
42 Tuscola County 2672
43 Oceana County 2548
44 Osceola County 2400
45 Emmet County 2268
46 Wexford County 2205
47 Chippewa County 2191
48 Delta County 2023
49 Gladwin County 1990
50 Huron County 1919
51 Gratiot County 1880
52 Otsego County 1851
53 Charlevoix County 1787
54 Mason County 1744
55 Iosco County 1702
56 Cheboygan County 1650
57 Kalkaska County 1538
58 Alpena County 1504
59 Antrim County 1444
60 Roscommon County 1393
61 Missaukee County 1365
62 Dickinson County 1271
63 Oscoda County 1264
64 Manistee County 1202
65 Leelanau County 1153
66 Mackinac County 1147
67 Menominee County 1118
68 Benzie County 1116
69 Ogemaw County 1044
70 Gogebic County 964
71 Arenac County 931
72 Presque Isle County 844
73 Lake County 804
74 Iron County 800
75 Crawford County 667
76 Montmorency County 653
77 Schoolcraft County 568
78 Alcona County 494
79 Alger County 400
80 Baraga County 390
81 Ontonagon County 312
82 Luce County 172
83 Keweenaw County 163