Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in Michigan

Counties in Michigan by uninsured rate, ages 18 to 64 (US model-based estimate)

Mackinac County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 83 counties in 2021, at 13.1%. Livingston County had the lowest, at 4.7%. The median was 7.8% and the figure for Michigan was 7.1%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest13.1Mackinac County
Lowest4.7Livingston County
Median7.883 counties
Michigan7.1History

Map of counties, 2021

Alcona County: 9.2 %Alger County: 6.7 %Allegan County: 7.4 %Alpena County: 7.5 %Antrim County: 8.4 %Arenac County: 8.6 %Baraga County: 9.2 %Barry County: 6.5 %Bay County: 7 %Benzie County: 7.5 %Berrien County: 8.9 %Branch County: 9.2 %Calhoun County: 7.9 %Cass County: 8.3 %Charlevoix County: 7.2 %Cheboygan County: 9.6 %Chippewa County: 9.3 %Clare County: 9.6 %Clinton County: 5 %Crawford County: 7.8 %Delta County: 8.5 %Dickinson County: 5.8 %Eaton County: 6.2 %Emmet County: 8.2 %Genesee County: 7.9 %Gladwin County: 8.7 %Gogebic County: 7.8 %Grand Traverse County: 6.1 %Gratiot County: 6.9 %Hillsdale County: 8.7 %Houghton County: 8.9 %Huron County: 7.6 %Ingham County: 7 %Ionia County: 7.2 %Iosco County: 8.3 %Iron County: 8.6 %Isabella County: 8.7 %Jackson County: 7.4 %Kalamazoo County: 6 %Kalkaska County: 8.2 %Kent County: 7.7 %Keweenaw County: 5 %Lake County: 9.2 %Lapeer County: 7.4 %Leelanau County: 7.8 %Lenawee County: 7.3 %Livingston County: 4.7 %Luce County: 8.4 %Mackinac County: 13.1 %Macomb County: 7.3 %Manistee County: 8 %Marquette County: 6.2 %Mason County: 7.6 %Mecosta County: 7.4 %Menominee County: 7.2 %Midland County: 5.8 %Missaukee County: 9.5 %Monroe County: 5.5 %Montcalm County: 8.8 %Montmorency County: 8.8 %Muskegon County: 6.8 %Newaygo County: 8.5 %Oakland County: 5.3 %Oceana County: 10.9 %Ogemaw County: 9.1 %Ontonagon County: 9.5 %Osceola County: 9.3 %Oscoda County: 11.3 %Otsego County: 7.5 %Ottawa County: 5.6 %Presque Isle County: 7.8 %Roscommon County: 8.3 %Saginaw County: 7.1 %St. Clair County: 7 %St. Joseph County: 10.7 %Sanilac County: 8.3 %Schoolcraft County: 9.7 %Shiawassee County: 6.5 %Tuscola County: 7.1 %Van Buren County: 10.6 %Washtenaw County: 5.8 %Wayne County: 8.2 %Wexford County: 8.2 %
  • Under 6.5
  • 6.5 to 7.3
  • 7.3 to 7.8
  • 7.8 to 8.5
  • 8.5 to 9.2
  • 9.2 and over
%, 2021. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Mackinac County: 13.1 %Mackinac County13.1Oscoda County: 11.3 %Oscoda County11.3Oceana County: 10.9 %Oceana County10.9St. Joseph County: 10.7 %St. Joseph County10.7Van Buren County: 10.6 %Van Buren County10.6Schoolcraft County: 9.7 %Schoolcraft County9.7Cheboygan County: 9.6 %Cheboygan County9.6Clare County: 9.6 %Clare County9.6Missaukee County: 9.5 %Missaukee County9.5Ontonagon County: 9.5 %Ontonagon County9.5Chippewa County: 9.3 %Chippewa County9.3Osceola County: 9.3 %Osceola County9.3Alcona County: 9.2 %Alcona County9.2Baraga County: 9.2 %Baraga County9.2Branch County: 9.2 %Branch County9.2Lake County: 9.2 %Lake County9.2Ogemaw County: 9.1 %Ogemaw County9.1Berrien County: 8.9 %Berrien County8.9Houghton County: 8.9 %Houghton County8.9Montcalm County: 8.8 %Montcalm County8.8Montmorency County: 8.8 %Montmorency County8.8Gladwin County: 8.7 %Gladwin County8.7Hillsdale County: 8.7 %Hillsdale County8.7Isabella County: 8.7 %Isabella County8.7Arenac County: 8.6 %Arenac County8.6Iron County: 8.6 %Iron County8.6Delta County: 8.5 %Delta County8.5Newaygo County: 8.5 %Newaygo County8.5Antrim County: 8.4 %Antrim County8.4Luce County: 8.4 %Luce County8.4Cass County: 8.3 %Cass County8.3Iosco County: 8.3 %Iosco County8.3Roscommon County: 8.3 %Roscommon County8.3Sanilac County: 8.3 %Sanilac County8.3Emmet County: 8.2 %Emmet County8.2Kalkaska County: 8.2 %Kalkaska County8.2Wayne County: 8.2 %Wayne County8.2Wexford County: 8.2 %Wexford County8.2Manistee County: 8 %Manistee County8Calhoun County: 7.9 %Calhoun County7.9Mackinac County: 13.1 %Mackinac County13.1Oscoda County: 11.3 %Oscoda County11.3Oceana County: 10.9 %Oceana County10.9St. Joseph County: 10.7 %St. Joseph County10.7Van Buren County: 10.6 %Van Buren County10.6Schoolcraft County: 9.7 %Schoolcraft County9.7Cheboygan County: 9.6 %Cheboygan County9.6Clare County: 9.6 %Clare County9.6Missaukee County: 9.5 %Missaukee County9.5Ontonagon County: 9.5 %Ontonagon County9.5Chippewa County: 9.3 %Chippewa County9.3Osceola County: 9.3 %Osceola County9.3Alcona County: 9.2 %Alcona County9.2Baraga County: 9.2 %Baraga County9.2Branch County: 9.2 %Branch County9.2Lake County: 9.2 %Lake County9.2Ogemaw County: 9.1 %Ogemaw County9.1Berrien County: 8.9 %Berrien County8.9Houghton County: 8.9 %Houghton County8.9Montcalm County: 8.8 %Montcalm County8.8Montmorency County: 8.8 %Montmorency County8.8Gladwin County: 8.7 %Gladwin County8.7Hillsdale County: 8.7 %Hillsdale County8.7Isabella County: 8.7 %Isabella County8.7Arenac County: 8.6 %Arenac County8.6Iron County: 8.6 %Iron County8.6Delta County: 8.5 %Delta County8.5Newaygo County: 8.5 %Newaygo County8.5Antrim County: 8.4 %Antrim County8.4Luce County: 8.4 %Luce County8.4Cass County: 8.3 %Cass County8.3Iosco County: 8.3 %Iosco County8.3Roscommon County: 8.3 %Roscommon County8.3Sanilac County: 8.3 %Sanilac County8.3Emmet County: 8.2 %Emmet County8.2Kalkaska County: 8.2 %Kalkaska County8.2Wayne County: 8.2 %Wayne County8.2Wexford County: 8.2 %Wexford County8.2Manistee County: 8 %Manistee County8Calhoun County: 7.9 %Calhoun County7.9
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)Change on 2020
1Mackinac County13.1-1.3 pts
2Oscoda County11.3-1 pts
3Oceana County10.9-1.7 pts
4St. Joseph County10.7-2.4 pts
5Van Buren County10.60 pts
6Schoolcraft County9.7-2.4 pts
7Cheboygan County9.6-0.3 pts
7Clare County9.6-1.1 pts
9Missaukee County9.5-1.2 pts
9Ontonagon County9.5-0.9 pts
11Chippewa County9.3-3.3 pts
11Osceola County9.3-1.3 pts
13Alcona County9.2-0.7 pts
13Baraga County9.2-1.9 pts
13Branch County9.2-1.3 pts
13Lake County9.2-0.7 pts
17Ogemaw County9.1-1.4 pts
18Berrien County8.9-0.4 pts
18Houghton County8.9-2.2 pts
20Montcalm County8.8-0.1 pts
20Montmorency County8.8-0.3 pts
22Gladwin County8.7-1.1 pts
22Hillsdale County8.7-0.1 pts
22Isabella County8.7-2.6 pts
25Arenac County8.6-1 pts
25Iron County8.6-1.2 pts
27Delta County8.5-1.1 pts
27Newaygo County8.5-0.9 pts
29Antrim County8.4-1.1 pts
29Luce County8.4-2.6 pts
31Cass County8.3-0.4 pts
31Iosco County8.3-1 pts
31Roscommon County8.3+0.2 pts
31Sanilac County8.3-1.1 pts
35Emmet County8.2-1.7 pts
35Kalkaska County8.2-2.2 pts
35Wayne County8.20 pts
35Wexford County8.2-0.7 pts
39Manistee County8-2.2 pts
40Calhoun County7.9+0.1 pts
40Genesee County7.9+0.1 pts
42Crawford County7.8-0.2 pts
42Gogebic County7.8-1.6 pts
42Leelanau County7.8-2.3 pts
42Presque Isle County7.8-1.6 pts
46Kent County7.7-1 pts
47Huron County7.6-0.3 pts
47Mason County7.6-1.7 pts
49Alpena County7.5-0.1 pts
49Benzie County7.5-1.9 pts
49Otsego County7.5-2 pts
52Allegan County7.4-1.1 pts
52Jackson County7.4-0.2 pts
52Lapeer County7.4-1 pts
52Mecosta County7.4-2.4 pts
56Lenawee County7.3-0.9 pts
56Macomb County7.3-0.7 pts
58Charlevoix County7.2-1.5 pts
58Ionia County7.2-0.9 pts
58Menominee County7.2-1.6 pts
61Saginaw County7.1-0.6 pts
61Tuscola County7.1-1 pts
63Bay County7-1.4 pts
63Ingham County7-0.5 pts
63St. Clair County7-1 pts
66Gratiot County6.9-1.2 pts
67Muskegon County6.8-0.5 pts
68Alger County6.7-2.7 pts
69Barry County6.5-1.4 pts
69Shiawassee County6.5+0.1 pts
71Eaton County6.2-0.7 pts
71Marquette County6.2-1.7 pts
73Grand Traverse County6.1-2.4 pts
74Kalamazoo County6-2.3 pts
75Dickinson County5.8-1 pts
75Midland County5.8-0.6 pts
75Washtenaw County5.8-0.1 pts
78Ottawa County5.6-0.7 pts
79Monroe County5.5-0.7 pts
80Oakland County5.3-0.6 pts
81Clinton County5-1.4 pts
81Keweenaw County5-1.6 pts
83Livingston County4.7-0.1 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. 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. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-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, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Michigan by uninsured rate, ages 18 to 64 (US model-based estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Michigan by uninsured rate, ages 18 to 64 (US model-based estimate), 2021. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Michigan by uninsured rate, ages 18 to 64 (US model-based estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Michigan by uninsured rate, ages 18 to 64 (US model-based estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_michigan_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Michigan by uninsured rate, ages 18 to 64 (US model-based estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2021. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Michigan by uninsured rate, ages 18 to 64 (US model-based estimate), 2021
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-2021-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Mackinac County, with 13.1% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Livingston County, with 4.7% 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, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in Michigan: more rankings