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 2015, at 14%. Livingston County had the lowest, at 5.6%. The median was 9.2% and the figure for Michigan was 8.7%. Source: the U.S. Census Bureau.

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Highest14Mackinac County
Lowest5.6Livingston County
Median9.283 counties
Michigan8.7History

Map of counties, 2015

Alcona County: 10.2 %Alger County: 10.6 %Allegan County: 8 %Alpena County: 9.1 %Antrim County: 10 %Arenac County: 9.9 %Baraga County: 11.1 %Barry County: 7.3 %Bay County: 7.8 %Benzie County: 10.3 %Berrien County: 10.5 %Branch County: 9.3 %Calhoun County: 8.9 %Cass County: 9.7 %Charlevoix County: 9.1 %Cheboygan County: 11.4 %Chippewa County: 12.1 %Clare County: 11 %Clinton County: 6.1 %Crawford County: 8.8 %Delta County: 8.9 %Dickinson County: 7.4 %Eaton County: 6.4 %Emmet County: 9.4 %Genesee County: 8.4 %Gladwin County: 10.5 %Gogebic County: 10.1 %Grand Traverse County: 7.4 %Gratiot County: 7.1 %Hillsdale County: 9.3 %Houghton County: 9.7 %Huron County: 9.3 %Ingham County: 8.9 %Ionia County: 7.7 %Iosco County: 9.1 %Iron County: 8.9 %Isabella County: 10.8 %Jackson County: 7.5 %Kalamazoo County: 8.1 %Kalkaska County: 10.6 %Kent County: 9.2 %Keweenaw County: 8.8 %Lake County: 10.4 %Lapeer County: 8.7 %Leelanau County: 9.4 %Lenawee County: 8.1 %Livingston County: 5.6 %Luce County: 11.4 %Mackinac County: 14 %Macomb County: 8.6 %Manistee County: 9.9 %Marquette County: 6.5 %Mason County: 9 %Mecosta County: 9.2 %Menominee County: 7.8 %Midland County: 7 %Missaukee County: 10.6 %Monroe County: 6.9 %Montcalm County: 9.2 %Montmorency County: 10.5 %Muskegon County: 8.8 %Newaygo County: 9.2 %Oakland County: 7.7 %Oceana County: 13 %Ogemaw County: 10.7 %Ontonagon County: 9.6 %Osceola County: 10.6 %Oscoda County: 12.4 %Otsego County: 9.3 %Ottawa County: 7.1 %Presque Isle County: 10.2 %Roscommon County: 10.8 %Saginaw County: 8.3 %St. Clair County: 8 %St. Joseph County: 10.7 %Sanilac County: 10.4 %Schoolcraft County: 11.2 %Shiawassee County: 8.1 %Tuscola County: 8 %Van Buren County: 11.1 %Washtenaw County: 6.3 %Wayne County: 10.6 %Wexford County: 9 %
  • Under 7.7
  • 7.7 to 8.8
  • 8.8 to 9.2
  • 9.2 to 10
  • 10 to 11
  • 11 and over
%, 2015. 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, 2015

Mackinac County: 14 %Mackinac County14Oceana County: 13 %Oceana County13Oscoda County: 12.4 %Oscoda County12.4Chippewa County: 12.1 %Chippewa County12.1Cheboygan County: 11.4 %Cheboygan County11.4Luce County: 11.4 %Luce County11.4Schoolcraft County: 11.2 %Schoolcraft County11.2Baraga County: 11.1 %Baraga County11.1Van Buren County: 11.1 %Van Buren County11.1Clare County: 11 %Clare County11Isabella County: 10.8 %Isabella County10.8Roscommon County: 10.8 %Roscommon County10.8Ogemaw County: 10.7 %Ogemaw County10.7St. Joseph County: 10.7 %St. Joseph County10.7Alger County: 10.6 %Alger County10.6Kalkaska County: 10.6 %Kalkaska County10.6Missaukee County: 10.6 %Missaukee County10.6Osceola County: 10.6 %Osceola County10.6Wayne County: 10.6 %Wayne County10.6Berrien County: 10.5 %Berrien County10.5Gladwin County: 10.5 %Gladwin County10.5Montmorency County: 10.5 %Montmorency County10.5Lake County: 10.4 %Lake County10.4Sanilac County: 10.4 %Sanilac County10.4Benzie County: 10.3 %Benzie County10.3Alcona County: 10.2 %Alcona County10.2Presque Isle County: 10.2 %Presque Isle County10.2Gogebic County: 10.1 %Gogebic County10.1Antrim County: 10 %Antrim County10Arenac County: 9.9 %Arenac County9.9Manistee County: 9.9 %Manistee County9.9Cass County: 9.7 %Cass County9.7Houghton County: 9.7 %Houghton County9.7Ontonagon County: 9.6 %Ontonagon County9.6Emmet County: 9.4 %Emmet County9.4Leelanau County: 9.4 %Leelanau County9.4Branch County: 9.3 %Branch County9.3Hillsdale County: 9.3 %Hillsdale County9.3Huron County: 9.3 %Huron County9.3Otsego County: 9.3 %Otsego County9.3Mackinac County: 14 %Mackinac County14Oceana County: 13 %Oceana County13Oscoda County: 12.4 %Oscoda County12.4Chippewa County: 12.1 %Chippewa County12.1Cheboygan County: 11.4 %Cheboygan County11.4Luce County: 11.4 %Luce County11.4Schoolcraft County: 11.2 %Schoolcraft County11.2Baraga County: 11.1 %Baraga County11.1Van Buren County: 11.1 %Van Buren County11.1Clare County: 11 %Clare County11Isabella County: 10.8 %Isabella County10.8Roscommon County: 10.8 %Roscommon County10.8Ogemaw County: 10.7 %Ogemaw County10.7St. Joseph County: 10.7 %St. Joseph County10.7Alger County: 10.6 %Alger County10.6Kalkaska County: 10.6 %Kalkaska County10.6Missaukee County: 10.6 %Missaukee County10.6Osceola County: 10.6 %Osceola County10.6Wayne County: 10.6 %Wayne County10.6Berrien County: 10.5 %Berrien County10.5Gladwin County: 10.5 %Gladwin County10.5Montmorency County: 10.5 %Montmorency County10.5Lake County: 10.4 %Lake County10.4Sanilac County: 10.4 %Sanilac County10.4Benzie County: 10.3 %Benzie County10.3Alcona County: 10.2 %Alcona County10.2Presque Isle County: 10.2 %Presque Isle County10.2Gogebic County: 10.1 %Gogebic County10.1Antrim County: 10 %Antrim County10Arenac County: 9.9 %Arenac County9.9Manistee County: 9.9 %Manistee County9.9Cass County: 9.7 %Cass County9.7Houghton County: 9.7 %Houghton County9.7Ontonagon County: 9.6 %Ontonagon County9.6Emmet County: 9.4 %Emmet County9.4Leelanau County: 9.4 %Leelanau County9.4Branch County: 9.3 %Branch County9.3Hillsdale County: 9.3 %Hillsdale County9.3Huron County: 9.3 %Huron County9.3Otsego County: 9.3 %Otsego County9.3
%. 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

RankCounties2015 (%)Change on 2014
1Mackinac County14-4.5 pts
2Oceana County13-5.7 pts
3Oscoda County12.4-4.5 pts
4Chippewa County12.1-4 pts
5Cheboygan County11.4-4.4 pts
5Luce County11.4-3.7 pts
7Schoolcraft County11.2-3 pts
8Baraga County11.1-3.3 pts
8Van Buren County11.1-3.2 pts
10Clare County11-5.2 pts
11Isabella County10.8-2.9 pts
11Roscommon County10.8-4.8 pts
13Ogemaw County10.7-4.4 pts
13St. Joseph County10.7-3.6 pts
15Alger County10.6-3 pts
15Kalkaska County10.6-4.6 pts
15Missaukee County10.6-5.2 pts
15Osceola County10.6-3.3 pts
15Wayne County10.6-4.9 pts
20Berrien County10.5-4.3 pts
20Gladwin County10.5-4.3 pts
20Montmorency County10.5-4.1 pts
23Lake County10.4-5 pts
23Sanilac County10.4-4.9 pts
25Benzie County10.3-4.3 pts
26Alcona County10.2-4.8 pts
26Presque Isle County10.2-4.9 pts
28Gogebic County10.1-4.2 pts
29Antrim County10-4.7 pts
30Arenac County9.9-4.8 pts
30Manistee County9.9-4.2 pts
32Cass County9.7-4.6 pts
32Houghton County9.7-3.1 pts
34Ontonagon County9.6-4.4 pts
35Emmet County9.4-3.8 pts
35Leelanau County9.4-4.2 pts
37Branch County9.3-4.8 pts
37Hillsdale County9.3-4.6 pts
37Huron County9.3-3.8 pts
37Otsego County9.3-3.7 pts
41Kent County9.2-4.3 pts
41Mecosta County9.2-3.5 pts
41Montcalm County9.2-4.7 pts
41Newaygo County9.2-5.6 pts
45Alpena County9.1-4.1 pts
45Charlevoix County9.1-3.8 pts
45Iosco County9.1-5.2 pts
48Mason County9-4.3 pts
48Wexford County9-5 pts
50Calhoun County8.9-3.3 pts
50Delta County8.9-3.7 pts
50Ingham County8.9-2.9 pts
50Iron County8.9-4.2 pts
54Crawford County8.8-4.1 pts
54Keweenaw County8.8-3 pts
54Muskegon County8.8-4.2 pts
57Lapeer County8.7-3 pts
58Macomb County8.6-3.5 pts
59Genesee County8.4-2.5 pts
60Saginaw County8.3-3.4 pts
61Kalamazoo County8.1-3.1 pts
61Lenawee County8.1-3.6 pts
61Shiawassee County8.1-4.4 pts
64Allegan County8-3.5 pts
64St. Clair County8-4.3 pts
64Tuscola County8-4.9 pts
67Bay County7.8-2.9 pts
67Menominee County7.8-4.2 pts
69Ionia County7.7-4.5 pts
69Oakland County7.7-2.5 pts
71Jackson County7.5-4.3 pts
72Dickinson County7.4-3.5 pts
72Grand Traverse County7.4-4.2 pts
74Barry County7.3-3.4 pts
75Gratiot County7.1-4.6 pts
75Ottawa County7.1-2.8 pts
77Midland County7-3.2 pts
78Monroe County6.9-2.6 pts
79Marquette County6.5-4.2 pts
80Eaton County6.4-3.2 pts
81Washtenaw County6.3-2.8 pts
82Clinton County6.1-2.1 pts
83Livingston County5.6-3.1 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-2015-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), 2015) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-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), 2015. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2015. 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), 2015. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2015.

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), 2015 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_michigan_by_2015,
  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), 2015}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2015. 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-2015-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), 2015
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-2015-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/michigan-counties?period=2015.
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-2015-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 14% in 2015, 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 5.6% in 2015.

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