Data / Rankings / Uninsured rate, 65 and over (US, ACS) / Counties in Massachusetts

Counties in Massachusetts by uninsured rate, 65 and over (US, ACS)

Suffolk County had the highest uninsured rate, 65 and over (US, ACS) of 14 counties in 2021, at 1%. Nantucket County had the lowest, at 0%. The median was 0.2% and the figure for Massachusetts was 0.4%. Source: the U.S. Census Bureau.

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Highest1Suffolk County
Lowest0Nantucket County
Median0.214 counties
Massachusetts0.4History

Map of counties, 2021

Barnstable County: 0.2 %Berkshire County: 0.3 %Bristol County: 0.2 %Dukes County: 0 %Essex County: 0.4 %Franklin County: 0 %Hampden County: 0.2 %Hampshire County: 0.2 %Middlesex County: 0.5 %Nantucket County: 0 %Norfolk County: 0.5 %Plymouth County: 0.3 %Suffolk County: 1 %Worcester County: 0.3 %
  • Under 0.1
  • 0.1 to 0.2
  • 0.2 to 0.3
  • 0.3 to 0.4
  • 0.4 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Suffolk County: 1 %Suffolk County1Middlesex County: 0.5 %Middlesex County0.5Norfolk County: 0.5 %Norfolk County0.5Essex County: 0.4 %Essex County0.4Worcester County: 0.3 %Worcester County0.3Berkshire County: 0.3 %Berkshire County0.3Plymouth County: 0.3 %Plymouth County0.3Hampshire County: 0.2 %Hampshire County0.2Barnstable County: 0.2 %Barnstable County0.2Bristol County: 0.2 %Bristol County0.2Hampden County: 0.2 %Hampden County0.2Franklin County: 0 %Franklin County0Dukes County: 0 %Dukes County0Nantucket County: 0 %Nantucket County0Suffolk County: 1 %Suffolk County1Middlesex County: 0.5 %Middlesex County0.5Norfolk County: 0.5 %Norfolk County0.5Essex County: 0.4 %Essex County0.4Worcester County: 0.3 %Worcester County0.3Berkshire County: 0.3 %Berkshire County0.3Plymouth County: 0.3 %Plymouth County0.3Hampshire County: 0.2 %Hampshire County0.2Barnstable County: 0.2 %Barnstable County0.2Bristol County: 0.2 %Bristol County0.2Hampden County: 0.2 %Hampden County0.2Franklin County: 0 %Franklin County0Dukes County: 0 %Dukes County0Nantucket County: 0 %Nantucket County0
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Suffolk County1
2Middlesex County0.5
3Norfolk County0.5
4Essex County0.4
5Worcester County0.3
6Berkshire County0.3
7Plymouth County0.3
8Hampshire County0.2
9Barnstable County0.2
9Bristol County0.2
11Hampden County0.2
12Franklin County0
13Dukes County0
13Nantucket County0

Other periods

About this ranking

People aged 65 and over without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 65 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Coverage is what people reported at the interview, so the five-year figure averages five years of answers. People whose only coverage is the Indian Health Service count as uninsured. Active-duty military and people living in institutions are outside the universe. For single-year model-based county figures under 65, see uninsured_rate_under_65, uninsured_rate_18_64 and uninsured_rate_under_19 (SAHIE), a different source.

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. American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. 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). American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs (Counties in Massachusetts by uninsured rate, 65 and over (US, ACS), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs, Counties in Massachusetts by uninsured rate, 65 and over (US, ACS), 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-65-and-over/massachusetts-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. Counties in Massachusetts by uninsured rate, 65 and over (US, ACS), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-65-and-over/massachusetts-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs, Counties in Massachusetts by uninsured rate, 65 and over (US, ACS), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-65-and-over/massachusetts-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_massachusetts_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs: Counties in Massachusetts by uninsured rate, 65 and over (US, ACS), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-65-and-over/massachusetts-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs: Counties in Massachusetts by uninsured rate, 65 and over (US, ACS), 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-65-and-over/massachusetts-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-65-and-over/massachusetts-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.
ER  -
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Rank Counties in Massachusetts by uninsured rate, 65 and over (US, ACS) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_65_plus","level":"province","within":"Massachusetts","limit":10}
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Questions

Which county has the highest uninsured rate, 65 and over (US, ACS)?

Suffolk County, with 1% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, 65 and over (US, ACS)?

Nantucket County, with 0% 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, American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, 65 and over (US, ACS): other rankings

Counties in Massachusetts: more rankings