Data / Rankings / Uninsured rate, all ages (US) / Counties in Michigan

Counties in Michigan by uninsured rate, all ages (US)

Oscoda County had the highest uninsured rate, all ages (US) of 83 counties in 2021, at 15.5%. Livingston County had the lowest, at 3.4%. The median was 6% and the figure for Michigan was 5.3%. Source: the U.S. Census Bureau.

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Highest15.5Oscoda County
Lowest3.4Livingston County
Median683 counties
Michigan5.3History

Map of counties, 2021

Alcona County: 4.9 %Alger County: 5.1 %Allegan County: 4.9 %Alpena County: 5.3 %Antrim County: 6.2 %Arenac County: 6.3 %Baraga County: 5.3 %Barry County: 4.7 %Bay County: 5.9 %Benzie County: 6.3 %Berrien County: 6.4 %Branch County: 10.9 %Calhoun County: 5.5 %Cass County: 5.7 %Charlevoix County: 6.9 %Cheboygan County: 6.5 %Chippewa County: 6.4 %Clare County: 11.7 %Clinton County: 3.7 %Crawford County: 5.2 %Delta County: 5.6 %Dickinson County: 5 %Eaton County: 4.4 %Emmet County: 6.8 %Genesee County: 5.4 %Gladwin County: 7.9 %Gogebic County: 6.8 %Grand Traverse County: 5.8 %Gratiot County: 5 %Hillsdale County: 7.3 %Houghton County: 7.6 %Huron County: 6.2 %Ingham County: 4.8 %Ionia County: 6.2 %Iosco County: 6.8 %Iron County: 7.1 %Isabella County: 8.1 %Jackson County: 5.7 %Kalamazoo County: 5.2 %Kalkaska County: 8.7 %Kent County: 5.2 %Keweenaw County: 8 %Lake County: 6.7 %Lapeer County: 7.3 %Leelanau County: 5.2 %Lenawee County: 5.7 %Livingston County: 3.4 %Luce County: 3.8 %Mackinac County: 10.7 %Macomb County: 5.3 %Manistee County: 5.1 %Marquette County: 4.3 %Mason County: 6 %Mecosta County: 6.9 %Menominee County: 4.8 %Midland County: 3.7 %Missaukee County: 9.1 %Monroe County: 3.8 %Montcalm County: 7.4 %Montmorency County: 7.2 %Muskegon County: 4.9 %Newaygo County: 7.1 %Oakland County: 4.1 %Oceana County: 9.7 %Ogemaw County: 5.1 %Ontonagon County: 5.3 %Osceola County: 10.7 %Oscoda County: 15.5 %Otsego County: 7.5 %Ottawa County: 3.5 %Presque Isle County: 6.6 %Roscommon County: 6 %Saginaw County: 4.3 %St. Clair County: 5.1 %St. Joseph County: 9.1 %Sanilac County: 8.1 %Schoolcraft County: 7.2 %Shiawassee County: 4.7 %Tuscola County: 5.1 %Van Buren County: 8 %Washtenaw County: 3.4 %Wayne County: 6 %Wexford County: 6.6 %
  • Under 4.8
  • 4.8 to 5.2
  • 5.2 to 6
  • 6 to 6.7
  • 6.7 to 7.7
  • 7.7 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Oscoda County: 15.5 %Oscoda County15.5Clare County: 11.7 %Clare County11.7Branch County: 10.9 %Branch County10.9Mackinac County: 10.7 %Mackinac County10.7Osceola County: 10.7 %Osceola County10.7Oceana County: 9.7 %Oceana County9.7Missaukee County: 9.1 %Missaukee County9.1St. Joseph County: 9.1 %St. Joseph County9.1Kalkaska County: 8.7 %Kalkaska County8.7Isabella County: 8.1 %Isabella County8.1Sanilac County: 8.1 %Sanilac County8.1Van Buren County: 8 %Van Buren County8Keweenaw County: 8 %Keweenaw County8Gladwin County: 7.9 %Gladwin County7.9Houghton County: 7.6 %Houghton County7.6Otsego County: 7.5 %Otsego County7.5Montcalm County: 7.4 %Montcalm County7.4Lapeer County: 7.3 %Lapeer County7.3Hillsdale County: 7.3 %Hillsdale County7.3Montmorency County: 7.2 %Montmorency County7.2Schoolcraft County: 7.2 %Schoolcraft County7.2Newaygo County: 7.1 %Newaygo County7.1Iron County: 7.1 %Iron County7.1Charlevoix County: 6.9 %Charlevoix County6.9Mecosta County: 6.9 %Mecosta County6.9Iosco County: 6.8 %Iosco County6.8Gogebic County: 6.8 %Gogebic County6.8Emmet County: 6.8 %Emmet County6.8Lake County: 6.7 %Lake County6.7Wexford County: 6.6 %Wexford County6.6Presque Isle County: 6.6 %Presque Isle County6.6Cheboygan County: 6.5 %Cheboygan County6.5Berrien County: 6.4 %Berrien County6.4Chippewa County: 6.4 %Chippewa County6.4Benzie County: 6.3 %Benzie County6.3Arenac County: 6.3 %Arenac County6.3Ionia County: 6.2 %Ionia County6.2Antrim County: 6.2 %Antrim County6.2Huron County: 6.2 %Huron County6.2Mason County: 6 %Mason County6Oscoda County: 15.5 %Oscoda County15.5Clare County: 11.7 %Clare County11.7Branch County: 10.9 %Branch County10.9Mackinac County: 10.7 %Mackinac County10.7Osceola County: 10.7 %Osceola County10.7Oceana County: 9.7 %Oceana County9.7Missaukee County: 9.1 %Missaukee County9.1St. Joseph County: 9.1 %St. Joseph County9.1Kalkaska County: 8.7 %Kalkaska County8.7Isabella County: 8.1 %Isabella County8.1Sanilac County: 8.1 %Sanilac County8.1Van Buren County: 8 %Van Buren County8Keweenaw County: 8 %Keweenaw County8Gladwin County: 7.9 %Gladwin County7.9Houghton County: 7.6 %Houghton County7.6Otsego County: 7.5 %Otsego County7.5Montcalm County: 7.4 %Montcalm County7.4Lapeer County: 7.3 %Lapeer County7.3Hillsdale County: 7.3 %Hillsdale County7.3Montmorency County: 7.2 %Montmorency County7.2Schoolcraft County: 7.2 %Schoolcraft County7.2Newaygo County: 7.1 %Newaygo County7.1Iron County: 7.1 %Iron County7.1Charlevoix County: 6.9 %Charlevoix County6.9Mecosta County: 6.9 %Mecosta County6.9Iosco County: 6.8 %Iosco County6.8Gogebic County: 6.8 %Gogebic County6.8Emmet County: 6.8 %Emmet County6.8Lake County: 6.7 %Lake County6.7Wexford County: 6.6 %Wexford County6.6Presque Isle County: 6.6 %Presque Isle County6.6Cheboygan County: 6.5 %Cheboygan County6.5Berrien County: 6.4 %Berrien County6.4Chippewa County: 6.4 %Chippewa County6.4Benzie County: 6.3 %Benzie County6.3Arenac County: 6.3 %Arenac County6.3Ionia County: 6.2 %Ionia County6.2Antrim County: 6.2 %Antrim County6.2Huron County: 6.2 %Huron County6.2Mason County: 6 %Mason County6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Oscoda County15.5
2Clare County11.7
3Branch County10.9
4Mackinac County10.7
5Osceola County10.7
6Oceana County9.7
7Missaukee County9.1
8St. Joseph County9.1
9Kalkaska County8.7
10Isabella County8.1
11Sanilac County8.1
12Van Buren County8
13Keweenaw County8
14Gladwin County7.9
15Houghton County7.6
16Otsego County7.5
17Montcalm County7.4
18Lapeer County7.3
19Hillsdale County7.3
20Montmorency County7.2
20Schoolcraft County7.2
22Newaygo County7.1
23Iron County7.1
24Charlevoix County6.9
25Mecosta County6.9
26Iosco County6.8
27Gogebic County6.8
28Emmet County6.8
29Lake County6.7
30Wexford County6.6
31Presque Isle County6.6
32Cheboygan County6.5
33Berrien County6.4
34Chippewa County6.4
35Benzie County6.3
36Arenac County6.3
37Ionia County6.2
38Antrim County6.2
39Huron County6.2
40Mason County6
41Roscommon County6
42Wayne County6
43Bay County5.9
44Grand Traverse County5.8
45Lenawee County5.7
46Cass County5.7
47Jackson County5.7
48Delta County5.6
49Calhoun County5.5
50Genesee County5.4
51Baraga County5.3
51Ontonagon County5.3
53Macomb County5.3
54Alpena County5.3
55Kent County5.2
56Leelanau County5.2
57Crawford County5.2
57Kalamazoo County5.2
59St. Clair County5.1
60Ogemaw County5.1
61Manistee County5.1
61Tuscola County5.1
63Alger County5.1
64Gratiot County5
65Dickinson County5
66Alcona County4.9
66Allegan County4.9
68Muskegon County4.9
69Ingham County4.8
70Menominee County4.8
71Shiawassee County4.7
72Barry County4.7
73Eaton County4.4
74Marquette County4.3
75Saginaw County4.3
76Oakland County4.1
77Monroe County3.8
78Luce County3.8
79Clinton County3.7
80Midland County3.7
81Ottawa County3.5
82Washtenaw County3.4
83Livingston County3.4

Other periods

About this ranking

People without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Coverage is what people reported at the interview, so the five-year figure averages five years of answers. People whose only coverage is the Indian Health Service count as uninsured. Active-duty military and people living in institutions are outside the universe. For single-year model-based county figures under 65, see uninsured_rate_under_65, uninsured_rate_18_64 and uninsured_rate_under_19 (SAHIE), a different source.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs (Counties in Michigan by uninsured rate, all ages (US), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in Michigan by uninsured rate, all ages (US), 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate/michigan-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Counties in Michigan by uninsured rate, all ages (US), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate/michigan-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in Michigan by uninsured rate, all ages (US), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate/michigan-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_michigan_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in Michigan by uninsured rate, all ages (US), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/michigan-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in Michigan by uninsured rate, all ages (US), 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate/michigan-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/michigan-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, all ages (US)?

Oscoda County, with 15.5% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, all ages (US)?

Livingston County, with 3.4% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, all ages (US): other rankings

Counties in Michigan: more rankings