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

Counties in Massachusetts by uninsured rate, under 19 (US model-based estimate), 2024

Dukes County had the highest uninsured rate, under 19 (US model-based estimate) of 14 counties in 2024, at 3%. Norfolk County had the lowest, at 1.5%. The median was 2% and the figure for Massachusetts was 1.9%. Source: the U.S. Census Bureau.

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Highest3Dukes County
Lowest1.5Norfolk County
Median214 counties
Massachusetts1.9History

Map of counties, 2024

Barnstable County: 2 %Berkshire County: 2 %Bristol County: 2.4 %Dukes County: 3 %Essex County: 2.2 %Franklin County: 2 %Hampden County: 2.2 %Hampshire County: 1.6 %Middlesex County: 1.7 %Nantucket County: 2.5 %Norfolk County: 1.5 %Plymouth County: 1.9 %Suffolk County: 2.3 %Worcester County: 1.7 %
  • Under 1.7
  • 1.7 to 2
  • 2 to 2.2
  • 2.2 to 2.3
  • 2.3 and over
%, 2024. 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.

All counties, 2024

Dukes County: 3 %Dukes County3Nantucket County: 2.5 %Nantucket County2.5Bristol County: 2.4 %Bristol County2.4Suffolk County: 2.3 %Suffolk County2.3Essex County: 2.2 %Essex County2.2Hampden County: 2.2 %Hampden County2.2Barnstable County: 2 %Barnstable County2Berkshire County: 2 %Berkshire County2Franklin County: 2 %Franklin County2Plymouth County: 1.9 %Plymouth County1.9Middlesex County: 1.7 %Middlesex County1.7Worcester County: 1.7 %Worcester County1.7Hampshire County: 1.6 %Hampshire County1.6Norfolk County: 1.5 %Norfolk County1.5Dukes County: 3 %Dukes County3Nantucket County: 2.5 %Nantucket County2.5Bristol County: 2.4 %Bristol County2.4Suffolk County: 2.3 %Suffolk County2.3Essex County: 2.2 %Essex County2.2Hampden County: 2.2 %Hampden County2.2Barnstable County: 2 %Barnstable County2Berkshire County: 2 %Berkshire County2Franklin County: 2 %Franklin County2Plymouth County: 1.9 %Plymouth County1.9Middlesex County: 1.7 %Middlesex County1.7Worcester County: 1.7 %Worcester County1.7Hampshire County: 1.6 %Hampshire County1.6Norfolk County: 1.5 %Norfolk County1.5
%. 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

RankCounties2024 (%)Change on 2023
1Dukes County3+0.4 pts
2Nantucket County2.5+0.6 pts
3Bristol County2.4+0.4 pts
4Suffolk County2.3+0.6 pts
5Essex County2.2+0.5 pts
5Hampden County2.2+0.5 pts
7Barnstable County2+0.6 pts
7Berkshire County2+0.5 pts
7Franklin County2+0.4 pts
10Plymouth County1.9+0.6 pts
11Middlesex County1.7+0.6 pts
11Worcester County1.7+0.2 pts
13Hampshire County1.6+0.3 pts
14Norfolk County1.5+0.4 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-2024-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 Massachusetts by uninsured rate, under 19 (US model-based estimate), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-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 Massachusetts by uninsured rate, under 19 (US model-based estimate), 2024. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/massachusetts-counties. 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 Massachusetts by uninsured rate, under 19 (US model-based estimate), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/massachusetts-counties.

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 Massachusetts by uninsured rate, under 19 (US model-based estimate), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/massachusetts-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_massachusetts_by_2024,
  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 Massachusetts by uninsured rate, under 19 (US model-based estimate), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/massachusetts-counties. 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-2024-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 Massachusetts by uninsured rate, under 19 (US model-based estimate), 2024
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-2024-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/massachusetts-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/massachusetts-counties.
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-2024-csv.zip. Retrieved 2026-10-12.
ER  -
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rank_places {"indicator":"uninsured_rate_under_19","level":"province","within":"Massachusetts","limit":10}
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Questions

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

Dukes County, with 3% in 2024, according to the U.S. Census Bureau.

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

Norfolk County, with 1.5% in 2024.

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 Massachusetts: more rankings