Data / Rankings / Uninsured rate, under 65 (US model-based estimate) / Counties in Michigan

Counties in Michigan by uninsured rate, under 65 (US model-based estimate)

Mackinac County had the highest uninsured rate, under 65 (US model-based estimate) of 83 counties in 2018, at 12.4%. Livingston County had the lowest, at 4.7%. The median was 7.5% and the figure for Michigan was 6.5%. Source: the U.S. Census Bureau.

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Highest12.4Mackinac County
Lowest4.7Livingston County
Median7.583 counties
Michigan6.5History

Map of counties, 2018

Alcona County: 8.8 %Alger County: 7.6 %Allegan County: 5.5 %Alpena County: 6.3 %Antrim County: 8.3 %Arenac County: 8.2 %Baraga County: 8 %Barry County: 5.9 %Bay County: 6.6 %Benzie County: 7.9 %Berrien County: 8.3 %Branch County: 8.5 %Calhoun County: 6.3 %Cass County: 7.5 %Charlevoix County: 7.5 %Cheboygan County: 8.8 %Chippewa County: 9.6 %Clare County: 8.4 %Clinton County: 5.1 %Crawford County: 7.4 %Delta County: 6 %Dickinson County: 5.7 %Eaton County: 5.1 %Emmet County: 8.3 %Genesee County: 6 %Gladwin County: 8.5 %Gogebic County: 7.9 %Grand Traverse County: 7 %Gratiot County: 5.9 %Hillsdale County: 7.6 %Houghton County: 7.2 %Huron County: 7.7 %Ingham County: 6.3 %Ionia County: 6.7 %Iosco County: 8 %Iron County: 7.6 %Isabella County: 8.7 %Jackson County: 6.6 %Kalamazoo County: 6.1 %Kalkaska County: 8.4 %Kent County: 6.8 %Keweenaw County: 6.2 %Lake County: 8.8 %Lapeer County: 8.5 %Leelanau County: 9 %Lenawee County: 5.9 %Livingston County: 4.7 %Luce County: 7.8 %Mackinac County: 12.4 %Macomb County: 6.4 %Manistee County: 7.8 %Marquette County: 6 %Mason County: 7.1 %Mecosta County: 8.3 %Menominee County: 6.9 %Midland County: 5.5 %Missaukee County: 9.5 %Monroe County: 4.8 %Montcalm County: 7 %Montmorency County: 8.1 %Muskegon County: 6 %Newaygo County: 7.5 %Oakland County: 5.7 %Oceana County: 10.9 %Ogemaw County: 8.2 %Ontonagon County: 8.1 %Osceola County: 8.5 %Oscoda County: 9.5 %Otsego County: 7 %Ottawa County: 6.1 %Presque Isle County: 8.3 %Roscommon County: 8 %Saginaw County: 5.9 %St. Clair County: 5.9 %St. Joseph County: 8.1 %Sanilac County: 8 %Schoolcraft County: 9.1 %Shiawassee County: 6 %Tuscola County: 7.4 %Van Buren County: 8.7 %Washtenaw County: 5.7 %Wayne County: 6.9 %Wexford County: 7 %
  • Under 6
  • 6 to 6.6
  • 6.6 to 7.5
  • 7.5 to 8.1
  • 8.1 to 8.5
  • 8.5 and over
%, 2018. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2018

Mackinac County: 12.4 %Mackinac County12.4Oceana County: 10.9 %Oceana County10.9Chippewa County: 9.6 %Chippewa County9.6Missaukee County: 9.5 %Missaukee County9.5Oscoda County: 9.5 %Oscoda County9.5Schoolcraft County: 9.1 %Schoolcraft County9.1Leelanau County: 9 %Leelanau County9Alcona County: 8.8 %Alcona County8.8Cheboygan County: 8.8 %Cheboygan County8.8Lake County: 8.8 %Lake County8.8Isabella County: 8.7 %Isabella County8.7Van Buren County: 8.7 %Van Buren County8.7Branch County: 8.5 %Branch County8.5Gladwin County: 8.5 %Gladwin County8.5Lapeer County: 8.5 %Lapeer County8.5Osceola County: 8.5 %Osceola County8.5Clare County: 8.4 %Clare County8.4Kalkaska County: 8.4 %Kalkaska County8.4Antrim County: 8.3 %Antrim County8.3Berrien County: 8.3 %Berrien County8.3Emmet County: 8.3 %Emmet County8.3Mecosta County: 8.3 %Mecosta County8.3Presque Isle County: 8.3 %Presque Isle County8.3Arenac County: 8.2 %Arenac County8.2Ogemaw County: 8.2 %Ogemaw County8.2Montmorency County: 8.1 %Montmorency County8.1Ontonagon County: 8.1 %Ontonagon County8.1St. Joseph County: 8.1 %St. Joseph County8.1Baraga County: 8 %Baraga County8Iosco County: 8 %Iosco County8Roscommon County: 8 %Roscommon County8Sanilac County: 8 %Sanilac County8Benzie County: 7.9 %Benzie County7.9Gogebic County: 7.9 %Gogebic County7.9Luce County: 7.8 %Luce County7.8Manistee County: 7.8 %Manistee County7.8Huron County: 7.7 %Huron County7.7Alger County: 7.6 %Alger County7.6Hillsdale County: 7.6 %Hillsdale County7.6Iron County: 7.6 %Iron County7.6Mackinac County: 12.4 %Mackinac County12.4Oceana County: 10.9 %Oceana County10.9Chippewa County: 9.6 %Chippewa County9.6Missaukee County: 9.5 %Missaukee County9.5Oscoda County: 9.5 %Oscoda County9.5Schoolcraft County: 9.1 %Schoolcraft County9.1Leelanau County: 9 %Leelanau County9Alcona County: 8.8 %Alcona County8.8Cheboygan County: 8.8 %Cheboygan County8.8Lake County: 8.8 %Lake County8.8Isabella County: 8.7 %Isabella County8.7Van Buren County: 8.7 %Van Buren County8.7Branch County: 8.5 %Branch County8.5Gladwin County: 8.5 %Gladwin County8.5Lapeer County: 8.5 %Lapeer County8.5Osceola County: 8.5 %Osceola County8.5Clare County: 8.4 %Clare County8.4Kalkaska County: 8.4 %Kalkaska County8.4Antrim County: 8.3 %Antrim County8.3Berrien County: 8.3 %Berrien County8.3Emmet County: 8.3 %Emmet County8.3Mecosta County: 8.3 %Mecosta County8.3Presque Isle County: 8.3 %Presque Isle County8.3Arenac County: 8.2 %Arenac County8.2Ogemaw County: 8.2 %Ogemaw County8.2Montmorency County: 8.1 %Montmorency County8.1Ontonagon County: 8.1 %Ontonagon County8.1St. Joseph County: 8.1 %St. Joseph County8.1Baraga County: 8 %Baraga County8Iosco County: 8 %Iosco County8Roscommon County: 8 %Roscommon County8Sanilac County: 8 %Sanilac County8Benzie County: 7.9 %Benzie County7.9Gogebic County: 7.9 %Gogebic County7.9Luce County: 7.8 %Luce County7.8Manistee County: 7.8 %Manistee County7.8Huron County: 7.7 %Huron County7.7Alger County: 7.6 %Alger County7.6Hillsdale County: 7.6 %Hillsdale County7.6Iron County: 7.6 %Iron County7.6
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Mackinac County12.4+0.9 pts
2Oceana County10.9+1.7 pts
3Chippewa County9.6+0.3 pts
4Missaukee County9.5+1.9 pts
4Oscoda County9.5+0.5 pts
6Schoolcraft County9.1+0.7 pts
7Leelanau County9+0.5 pts
8Alcona County8.80 pts
8Cheboygan County8.8+0.5 pts
8Lake County8.8+0.8 pts
11Isabella County8.7+1 pts
11Van Buren County8.7+0.5 pts
13Branch County8.5+0.4 pts
13Gladwin County8.5+0.5 pts
13Lapeer County8.5+2.2 pts
13Osceola County8.5+0.5 pts
17Clare County8.4+0.4 pts
17Kalkaska County8.4+0.2 pts
19Antrim County8.3+0.2 pts
19Berrien County8.3+1 pts
19Emmet County8.3+0.6 pts
19Mecosta County8.3+1.8 pts
19Presque Isle County8.3+0.7 pts
24Arenac County8.2+0.1 pts
24Ogemaw County8.2+0.9 pts
26Montmorency County8.1+0.7 pts
26Ontonagon County8.1-0.3 pts
26St. Joseph County8.1-0.1 pts
29Baraga County80 pts
29Iosco County8+0.4 pts
29Roscommon County8+0.5 pts
29Sanilac County8+0.5 pts
33Benzie County7.9+0.5 pts
33Gogebic County7.9+0.1 pts
35Luce County7.8+0.2 pts
35Manistee County7.8+0.3 pts
37Huron County7.7+0.8 pts
38Alger County7.60 pts
38Hillsdale County7.6+0.5 pts
38Iron County7.6+0.5 pts
41Cass County7.5+0.3 pts
41Charlevoix County7.5+1.1 pts
41Newaygo County7.5+0.3 pts
44Crawford County7.4+0.9 pts
44Tuscola County7.4+1.4 pts
46Houghton County7.2+0.5 pts
47Mason County7.1+0.7 pts
48Grand Traverse County7+0.7 pts
48Montcalm County70 pts
48Otsego County7+1 pts
48Wexford County7+0.2 pts
52Menominee County6.9-0.1 pts
52Wayne County6.9+0.1 pts
54Kent County6.8+0.4 pts
55Ionia County6.7+0.9 pts
56Bay County6.6+0.5 pts
56Jackson County6.6+0.9 pts
58Macomb County6.40 pts
59Alpena County6.3+0.1 pts
59Calhoun County6.3+0.7 pts
59Ingham County6.3+0.1 pts
62Keweenaw County6.2-0.9 pts
63Kalamazoo County6.1+0.5 pts
63Ottawa County6.1+0.9 pts
65Delta County6-0.5 pts
65Genesee County6-0.7 pts
65Marquette County6+0.3 pts
65Muskegon County6+0.5 pts
65Shiawassee County6+0.3 pts
70Barry County5.9+0.5 pts
70Gratiot County5.9+0.2 pts
70Lenawee County5.90 pts
70Saginaw County5.9-0.2 pts
70St. Clair County5.90 pts
75Dickinson County5.7-0.3 pts
75Oakland County5.7+0.8 pts
75Washtenaw County5.7+1.1 pts
78Allegan County5.50 pts
78Midland County5.5+0.5 pts
80Clinton County5.1+0.5 pts
80Eaton County5.1-0.4 pts
82Monroe County4.8-0.2 pts
83Livingston County4.7+0.6 pts

Other periods

About this ranking

People under 65 without health insurance coverage of any kind, as a percentage of all people under 65. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. People 65 and over are left out because nearly all of them have Medicare.

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. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. 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). Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties (Counties in Michigan by uninsured rate, under 65 (US model-based estimate), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Michigan by uninsured rate, under 65 (US model-based estimate), 2018. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/michigan-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Counties in Michigan by uninsured rate, under 65 (US model-based estimate), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/michigan-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Michigan by uninsured rate, under 65 (US model-based estimate), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/michigan-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_michigan_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Michigan by uninsured rate, under 65 (US model-based estimate), 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/michigan-counties?period=2018. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Michigan by uninsured rate, under 65 (US model-based estimate), 2018
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/michigan-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/michigan-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.
ER  -
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Rank Counties in Michigan by uninsured rate, under 65 (US model-based estimate) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, under 65 (US model-based estimate)?

Mackinac County, with 12.4% in 2018, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 65 (US model-based estimate)?

Livingston County, with 4.7% in 2018.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 65 (US model-based estimate): other rankings

Counties in Michigan: more rankings