Ranking of Maine Counties By Number of People and Percentage of Population With No Health Insurance Coverage in 2021 (ACS-5Yrs)

Updated on October 27, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the Maine population without a health insurance coverage was 7.37% (i.e. 98,944 people). Percentagewise, among all Maine counties, Piscataquis County had the highest percentage of its population with no health insurance coverage (11.95%), followed by Waldo County (11.36%), and Washington County (11.08%).

In numerical terms, Cumberland County had the highest number of people without a health insurance coverage (16,290), followed by Penobscot County (12,157), and York County (10,999).

The charts below shows the top 10 counties by the number of people and percentage of the population without a health insurance coverage. The tables below shows the ranking for all Maine counties.

You can see similar information for other types of health insurance coverages.

You can also see similar information for other states.

Ranking of Maine Counties By Percentage of Population With No Health Insurance Coverage in 2021
Piscataquis County
Waldo County
Washington County
Franklin County
Hancock County
Lincoln County
Aroostook County
Somerset County
Oxford County
Penobscot County
Ranking of Maine Counties By Number of People With No Health Insurance Coverage in 2021
Cumberland County
Penobscot County
York County
Kennebec County
Androscoggin County
Aroostook County
Hancock County
Oxford County
Waldo County
Somerset County
Ranking of Maine Counties By Percentage of Population With No Health Insurance Coverage in 2021
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Rank County Percentage of Population (%)
1 Piscataquis County 11.95
2 Waldo County 11.36
3 Washington County 11.08
4 Franklin County 10.18
5 Hancock County 9.90
6 Lincoln County 9.61
7 Aroostook County 8.64
8 Somerset County 8.61
9 Oxford County 8.43
10 Penobscot County 8.07
11 Androscoggin County 7.65
12 Knox County 7.61
13 Kennebec County 7.56
14 Sagadahoc County 6.87
15 Cumberland County 5.48
16 York County 5.27
Ranking of Maine Counties By Number of People With NO Health Insurance Coverage in 2021
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Rank County Number of People
1 Cumberland County 16290
2 Penobscot County 12157
3 York County 10999
4 Kennebec County 9207
5 Androscoggin County 8361
6 Aroostook County 5712
7 Hancock County 5438
8 Oxford County 4843
9 Waldo County 4487
10 Somerset County 4291
11 Washington County 3379
12 Lincoln County 3335
13 Franklin County 2990
14 Knox County 2972
15 Sagadahoc County 2502
16 Piscataquis County 1981