Counties in Michigan by uninsured rate, ages 35 to 64 (US, ACS), 2024

Mackinac County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 83 counties in 2024, at 15.4%. Clinton County had the lowest, at 2.6%. The median was 6.7% and the figure for Michigan was 6%. Source: the U.S. Census Bureau.

Highest15.4Mackinac County
Median6.783 counties
Michigan6History

Top 40 counties, 2024

Mackinac County: 15.4 %Mackinac County15.4Oscoda County: 13.1 %Oscoda County13.1St. Joseph County: 11.8 %St. Joseph County11.8Keweenaw County: 11.5 %Keweenaw County11.5Osceola County: 10.7 %Osceola County10.7Missaukee County: 10.4 %Missaukee County10.4Cass County: 9.9 %Cass County9.9Clare County: 9.8 %Clare County9.8Mecosta County: 9.7 %Mecosta County9.7Montmorency County: 9.7 %Montmorency County9.7Oceana County: 9.6 %Oceana County9.6Gladwin County: 9.5 %Gladwin County9.5Ogemaw County: 9.3 %Ogemaw County9.3Montcalm County: 9.1 %Montcalm County9.1Lake County: 9.1 %Lake County9.1Ontonagon County: 8.8 %Ontonagon County8.8Wexford County: 8.7 %Wexford County8.7Van Buren County: 8.6 %Van Buren County8.6Kalkaska County: 8.2 %Kalkaska County8.2Branch County: 8.2 %Branch County8.2Schoolcraft County: 8.2 %Schoolcraft County8.2Hillsdale County: 8 %Hillsdale County8Sanilac County: 8 %Sanilac County8Newaygo County: 7.9 %Newaygo County7.9Berrien County: 7.9 %Berrien County7.9Crawford County: 7.7 %Crawford County7.7Roscommon County: 7.7 %Roscommon County7.7Arenac County: 7.6 %Arenac County7.6Cheboygan County: 7.6 %Cheboygan County7.6Chippewa County: 7.5 %Chippewa County7.5Isabella County: 7.4 %Isabella County7.4Charlevoix County: 7.4 %Charlevoix County7.4Antrim County: 7.3 %Antrim County7.3Calhoun County: 7.1 %Calhoun County7.1Gogebic County: 7.1 %Gogebic County7.1Emmet County: 7 %Emmet County7Luce County: 7 %Luce County7Mason County: 6.9 %Mason County6.9Iosco County: 6.9 %Iosco County6.9Genesee County: 6.8 %Genesee County6.8
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Mackinac County15.4+0.6 pts
2Oscoda County13.1-1.1 pts
3St. Joseph County11.8+0.8 pts
4Keweenaw County11.5+2.9 pts
5Osceola County10.7-0.3 pts
6Missaukee County10.4-0.1 pts
7Cass County9.9+2 pts
8Clare County9.8-0.9 pts
9Mecosta County9.7+0.4 pts
10Montmorency County9.7+0.6 pts
11Oceana County9.6-0.8 pts
12Gladwin County9.5+0.7 pts
13Ogemaw County9.3+2.1 pts
14Montcalm County9.1-0.1 pts
15Lake County9.1-0.3 pts
16Ontonagon County8.8+1.7 pts
17Wexford County8.7-0 pts
18Van Buren County8.6-0.9 pts
19Kalkaska County8.2-1.3 pts
20Branch County8.2-0.3 pts
21Schoolcraft County8.2-1.7 pts
22Hillsdale County8+0.3 pts
23Sanilac County8-0.7 pts
24Newaygo County7.9-0.4 pts
25Berrien County7.90 pts
26Crawford County7.7+0.5 pts
26Roscommon County7.7+0.9 pts
28Arenac County7.6-0.6 pts
29Cheboygan County7.6-1.3 pts
30Chippewa County7.5-0.6 pts
31Isabella County7.4-0.2 pts
32Charlevoix County7.4+0.1 pts
33Antrim County7.3+0.4 pts
34Calhoun County7.1+0.2 pts
35Gogebic County7.1-1.7 pts
36Emmet County7+0.2 pts
37Luce County7+0.9 pts
38Mason County6.9-1.5 pts
39Iosco County6.9-0.4 pts
40Genesee County6.8+0.2 pts
41Wayne County6.8-0.1 pts
42Huron County6.7-1.2 pts
43Alpena County6.5-1.1 pts
43Iron County6.50 pts
45Presque Isle County6.5-0.6 pts
46Menominee County6.5-0.3 pts
47Jackson County6.4-0.1 pts
48Benzie County6.4-0.2 pts
49Midland County6.3+1.1 pts
50Allegan County6.3-0.5 pts
51Delta County6.2-2 pts
52Lapeer County6.2-0.9 pts
52Manistee County6.2+0.5 pts
54Gratiot County6.2-0.6 pts
55St. Clair County6.2-0.1 pts
56Tuscola County6.2-1 pts
57Lenawee County6.1-1.3 pts
58Kalamazoo County6.1-0.5 pts
59Houghton County6-1.3 pts
60Bay County6+0.2 pts
60Otsego County6-0.9 pts
62Barry County5.9-0.7 pts
62Saginaw County5.9+0.5 pts
64Macomb County5.8-0.2 pts
65Ionia County5.8-1.1 pts
66Kent County5.80 pts
67Muskegon County5.5-0.3 pts
68Ingham County5.3-0.3 pts
69Alcona County5.2-0.2 pts
70Leelanau County5.2-1.4 pts
71Baraga County5.2-0.8 pts
71Grand Traverse County5.2-0.1 pts
73Shiawassee County5.1-0.3 pts
74Marquette County5-0.6 pts
75Dickinson County4.9-0.6 pts
76Eaton County4.7-0.3 pts
77Oakland County4.7-0.2 pts
78Alger County4.6-1.2 pts
79Monroe County4.1-0.3 pts
80Ottawa County4+0.1 pts
81Washtenaw County3.60 pts
82Livingston County3.4-0.3 pts
83Clinton County2.6-0.5 pts

Other periods

About this ranking

People aged 35 to 64 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 35 to 64. 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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs (Counties in Michigan by uninsured rate, ages 35 to 64 (US, ACS), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in Michigan by uninsured rate, ages 35 to 64 (US, ACS), 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/michigan-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Counties in Michigan by uninsured rate, ages 35 to 64 (US, ACS), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/michigan-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in Michigan by uninsured rate, ages 35 to 64 (US, ACS), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-35-64/michigan-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_michigan_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in Michigan by uninsured rate, ages 35 to 64 (US, ACS), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/michigan-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in Michigan by uninsured rate, ages 35 to 64 (US, ACS), 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-35-64/michigan-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/michigan-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.
ER  - 
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Rank Counties in Michigan by uninsured rate, ages 35 to 64 (US, ACS) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, ages 35 to 64 (US, ACS)?

Mackinac County, with 15.4% in 2024, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 35 to 64 (US, ACS)?

Clinton County, with 2.6% in 2024.

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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 35 to 64 (US, ACS): other rankings

Counties in Michigan: more rankings