Data / Rankings / Uninsured rate, under 19 (US model-based estimate) / Counties in Michigan

Counties in Michigan by uninsured rate, under 19 (US model-based estimate)

Mackinac County had the highest uninsured rate, under 19 (US model-based estimate) of 83 counties in 2018, at 6.2%. Muskegon County had the lowest, at 2.7%. The median was 3.9% and the figure for Michigan was 3.3%. Source: the U.S. Census Bureau.

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Highest6.2Mackinac County
Lowest2.7Muskegon County
Median3.983 counties
Michigan3.3History

Map of counties, 2018

Alcona County: 5.2 %Alger County: 4.1 %Allegan County: 3.2 %Alpena County: 3.4 %Antrim County: 5.4 %Arenac County: 4.6 %Baraga County: 4.3 %Barry County: 3.3 %Bay County: 3 %Benzie County: 4.8 %Berrien County: 3.6 %Branch County: 6.1 %Calhoun County: 3.7 %Cass County: 4.1 %Charlevoix County: 4.1 %Cheboygan County: 4.7 %Chippewa County: 4.4 %Clare County: 3.9 %Clinton County: 2.8 %Crawford County: 3.9 %Delta County: 3.1 %Dickinson County: 3.3 %Eaton County: 3 %Emmet County: 5.2 %Genesee County: 2.9 %Gladwin County: 6.1 %Gogebic County: 3.9 %Grand Traverse County: 3.8 %Gratiot County: 3.3 %Hillsdale County: 4.4 %Houghton County: 3.6 %Huron County: 4.8 %Ingham County: 3 %Ionia County: 3.4 %Iosco County: 4.3 %Iron County: 4.4 %Isabella County: 4.8 %Jackson County: 3.4 %Kalamazoo County: 3.1 %Kalkaska County: 4.2 %Kent County: 3.5 %Keweenaw County: 4 %Lake County: 5.3 %Lapeer County: 4.8 %Leelanau County: 5.9 %Lenawee County: 2.8 %Livingston County: 2.7 %Luce County: 3.6 %Mackinac County: 6.2 %Macomb County: 3.3 %Manistee County: 4.3 %Marquette County: 3 %Mason County: 3.9 %Mecosta County: 4.9 %Menominee County: 3.8 %Midland County: 3.3 %Missaukee County: 5.6 %Monroe County: 2.8 %Montcalm County: 3.3 %Montmorency County: 4.2 %Muskegon County: 2.7 %Newaygo County: 4.4 %Oakland County: 3.3 %Oceana County: 6.1 %Ogemaw County: 4.8 %Ontonagon County: 4.5 %Osceola County: 4.6 %Oscoda County: 6 %Otsego County: 3.6 %Ottawa County: 3.2 %Presque Isle County: 5.3 %Roscommon County: 3.9 %Saginaw County: 3.1 %St. Clair County: 3.1 %St. Joseph County: 4.5 %Sanilac County: 5.6 %Schoolcraft County: 5.3 %Shiawassee County: 3 %Tuscola County: 4 %Van Buren County: 4 %Washtenaw County: 3.2 %Wayne County: 3 %Wexford County: 3.7 %
  • Under 3.1
  • 3.1 to 3.4
  • 3.4 to 3.9
  • 3.9 to 4.4
  • 4.4 to 5
  • 5 and over
%, 2018. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2018

Mackinac County: 6.2 %Mackinac County6.2Branch County: 6.1 %Branch County6.1Gladwin County: 6.1 %Gladwin County6.1Oceana County: 6.1 %Oceana County6.1Oscoda County: 6 %Oscoda County6Leelanau County: 5.9 %Leelanau County5.9Missaukee County: 5.6 %Missaukee County5.6Sanilac County: 5.6 %Sanilac County5.6Antrim County: 5.4 %Antrim County5.4Lake County: 5.3 %Lake County5.3Presque Isle County: 5.3 %Presque Isle County5.3Schoolcraft County: 5.3 %Schoolcraft County5.3Alcona County: 5.2 %Alcona County5.2Emmet County: 5.2 %Emmet County5.2Mecosta County: 4.9 %Mecosta County4.9Benzie County: 4.8 %Benzie County4.8Huron County: 4.8 %Huron County4.8Isabella County: 4.8 %Isabella County4.8Lapeer County: 4.8 %Lapeer County4.8Ogemaw County: 4.8 %Ogemaw County4.8Cheboygan County: 4.7 %Cheboygan County4.7Arenac County: 4.6 %Arenac County4.6Osceola County: 4.6 %Osceola County4.6Ontonagon County: 4.5 %Ontonagon County4.5St. Joseph County: 4.5 %St. Joseph County4.5Chippewa County: 4.4 %Chippewa County4.4Hillsdale County: 4.4 %Hillsdale County4.4Iron County: 4.4 %Iron County4.4Newaygo County: 4.4 %Newaygo County4.4Baraga County: 4.3 %Baraga County4.3Iosco County: 4.3 %Iosco County4.3Manistee County: 4.3 %Manistee County4.3Kalkaska County: 4.2 %Kalkaska County4.2Montmorency County: 4.2 %Montmorency County4.2Alger County: 4.1 %Alger County4.1Cass County: 4.1 %Cass County4.1Charlevoix County: 4.1 %Charlevoix County4.1Keweenaw County: 4 %Keweenaw County4Tuscola County: 4 %Tuscola County4Van Buren County: 4 %Van Buren County4Mackinac County: 6.2 %Mackinac County6.2Branch County: 6.1 %Branch County6.1Gladwin County: 6.1 %Gladwin County6.1Oceana County: 6.1 %Oceana County6.1Oscoda County: 6 %Oscoda County6Leelanau County: 5.9 %Leelanau County5.9Missaukee County: 5.6 %Missaukee County5.6Sanilac County: 5.6 %Sanilac County5.6Antrim County: 5.4 %Antrim County5.4Lake County: 5.3 %Lake County5.3Presque Isle County: 5.3 %Presque Isle County5.3Schoolcraft County: 5.3 %Schoolcraft County5.3Alcona County: 5.2 %Alcona County5.2Emmet County: 5.2 %Emmet County5.2Mecosta County: 4.9 %Mecosta County4.9Benzie County: 4.8 %Benzie County4.8Huron County: 4.8 %Huron County4.8Isabella County: 4.8 %Isabella County4.8Lapeer County: 4.8 %Lapeer County4.8Ogemaw County: 4.8 %Ogemaw County4.8Cheboygan County: 4.7 %Cheboygan County4.7Arenac County: 4.6 %Arenac County4.6Osceola County: 4.6 %Osceola County4.6Ontonagon County: 4.5 %Ontonagon County4.5St. Joseph County: 4.5 %St. Joseph County4.5Chippewa County: 4.4 %Chippewa County4.4Hillsdale County: 4.4 %Hillsdale County4.4Iron County: 4.4 %Iron County4.4Newaygo County: 4.4 %Newaygo County4.4Baraga County: 4.3 %Baraga County4.3Iosco County: 4.3 %Iosco County4.3Manistee County: 4.3 %Manistee County4.3Kalkaska County: 4.2 %Kalkaska County4.2Montmorency County: 4.2 %Montmorency County4.2Alger County: 4.1 %Alger County4.1Cass County: 4.1 %Cass County4.1Charlevoix County: 4.1 %Charlevoix County4.1Keweenaw County: 4 %Keweenaw County4Tuscola County: 4 %Tuscola County4Van Buren County: 4 %Van Buren County4
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Mackinac County6.2-0.3 pts
2Branch County6.1+1.9 pts
2Gladwin County6.1+1.9 pts
2Oceana County6.1+1.7 pts
5Oscoda County6+0.6 pts
6Leelanau County5.9-0.3 pts
7Missaukee County5.6+1 pts
7Sanilac County5.6+0.4 pts
9Antrim County5.40 pts
10Lake County5.3+1.4 pts
10Presque Isle County5.3+1.1 pts
10Schoolcraft County5.3+1 pts
13Alcona County5.2+0.5 pts
13Emmet County5.2+0.9 pts
15Mecosta County4.9+1.2 pts
16Benzie County4.80 pts
16Huron County4.8+0.1 pts
16Isabella County4.8+0.4 pts
16Lapeer County4.8+1.3 pts
16Ogemaw County4.8+1 pts
21Cheboygan County4.7+0.8 pts
22Arenac County4.60 pts
22Osceola County4.6-0.3 pts
24Ontonagon County4.5-0.5 pts
24St. Joseph County4.5-0.4 pts
26Chippewa County4.4+0.1 pts
26Hillsdale County4.4+0.8 pts
26Iron County4.4+0.7 pts
26Newaygo County4.4+0.6 pts
30Baraga County4.3-0.5 pts
30Iosco County4.3+0.8 pts
30Manistee County4.3+0.4 pts
33Kalkaska County4.2+0.4 pts
33Montmorency County4.2+0.2 pts
35Alger County4.10 pts
35Cass County4.1-0.1 pts
35Charlevoix County4.1+0.6 pts
38Keweenaw County4+0.2 pts
38Tuscola County4+1.1 pts
38Van Buren County4+0.1 pts
41Clare County3.90 pts
41Crawford County3.9+0.5 pts
41Gogebic County3.9-0.2 pts
41Mason County3.9+0.7 pts
41Roscommon County3.9+0.3 pts
46Grand Traverse County3.80 pts
46Menominee County3.8+0.1 pts
48Calhoun County3.7+0.8 pts
48Wexford County3.7+0.3 pts
50Berrien County3.60 pts
50Houghton County3.6+0.7 pts
50Luce County3.60 pts
50Otsego County3.6+0.3 pts
54Kent County3.5+0.2 pts
55Alpena County3.4+0.4 pts
55Ionia County3.4+0.4 pts
55Jackson County3.4+0.5 pts
58Barry County3.30 pts
58Dickinson County3.3+0.5 pts
58Gratiot County3.3+0.3 pts
58Macomb County3.3+0.3 pts
58Midland County3.3+0.6 pts
58Montcalm County3.3-0.4 pts
58Oakland County3.3+0.7 pts
65Allegan County3.2+0.3 pts
65Ottawa County3.2+0.3 pts
65Washtenaw County3.2+0.8 pts
68Delta County3.10 pts
68Kalamazoo County3.1+0.3 pts
68Saginaw County3.1+0.5 pts
68St. Clair County3.1+0.4 pts
72Bay County3+0.1 pts
72Eaton County3+0.4 pts
72Ingham County30 pts
72Marquette County3+0.1 pts
72Shiawassee County3-0.2 pts
72Wayne County3+0.5 pts
78Genesee County2.90 pts
79Clinton County2.8+0.3 pts
79Lenawee County2.8+0.2 pts
79Monroe County2.8+0.2 pts
82Livingston County2.7+0.6 pts
82Muskegon County2.7+0.6 pts

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of all people under 19. 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. Under 19 matches the age limit for children in Medicaid and the Children's Health Insurance Program (CHIP).

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 19, 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 19, all races, both sexes, all income levels, states and counties (Counties in Michigan by uninsured rate, under 19 (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 19, all races, both sexes, all income levels, states and counties, Counties in Michigan by uninsured rate, under 19 (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-19/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 19, all races, both sexes, all income levels, states and counties. Counties in Michigan by uninsured rate, under 19 (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-19/michigan-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in Michigan by uninsured rate, under 19 (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-19/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 19, all races, both sexes, all income levels, states and counties: Counties in Michigan by uninsured rate, under 19 (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-19/michigan-counties?period=2018. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, 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 19, all races, both sexes, all income levels, states and counties: Counties in Michigan by uninsured rate, under 19 (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-19/michigan-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/michigan-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, 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 19 (US model-based estimate) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_under_19","level":"province","within":"Michigan","limit":10}
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Questions

Which county has the highest uninsured rate, under 19 (US model-based estimate)?

Mackinac County, with 6.2% in 2018, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US model-based estimate)?

Muskegon County, with 2.7% 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 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 19 (US model-based estimate): other rankings

Counties in Michigan: more rankings