Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in New Hampshire

Counties in New Hampshire by uninsured rate, ages 18 to 64 (US model-based estimate)

Carroll County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 10 counties in 2020, at 12.3%. Rockingham County had the lowest, at 7.5%. The median was 10% and the figure for New Hampshire was 9.3%. Source: the U.S. Census Bureau.

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Highest12.3Carroll County
Lowest7.5Rockingham County
Median1010 counties
New Hampshire9.3History

Map of counties, 2020

Belknap County: 11.3 %Carroll County: 12.3 %Cheshire County: 9.8 %Coos County: 11.6 %Grafton County: 10.7 %Hillsborough County: 9.3 %Merrimack County: 9.5 %Rockingham County: 7.5 %Strafford County: 9.7 %Sullivan County: 10.1 %
  • Under 9.5
  • 9.5 to 9.8
  • 9.8 to 10
  • 10 to 11
  • 11 and over
%, 2020. 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.

All counties, 2020

Carroll County: 12.3 %Carroll County12.3Coos County: 11.6 %Coos County11.6Belknap County: 11.3 %Belknap County11.3Grafton County: 10.7 %Grafton County10.7Sullivan County: 10.1 %Sullivan County10.1Cheshire County: 9.8 %Cheshire County9.8Strafford County: 9.7 %Strafford County9.7Merrimack County: 9.5 %Merrimack County9.5Hillsborough County: 9.3 %Hillsborough County9.3Rockingham County: 7.5 %Rockingham County7.5Carroll County: 12.3 %Carroll County12.3Coos County: 11.6 %Coos County11.6Belknap County: 11.3 %Belknap County11.3Grafton County: 10.7 %Grafton County10.7Sullivan County: 10.1 %Sullivan County10.1Cheshire County: 9.8 %Cheshire County9.8Strafford County: 9.7 %Strafford County9.7Merrimack County: 9.5 %Merrimack County9.5Hillsborough County: 9.3 %Hillsborough County9.3Rockingham County: 7.5 %Rockingham County7.5
%. 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

RankCounties2020 (%)Change on 2019
1Carroll County12.3-0.3 pts
2Coos County11.6+1.4 pts
3Belknap County11.3+1.6 pts
4Grafton County10.7-0.1 pts
5Sullivan County10.1+1 pts
6Cheshire County9.8+0.9 pts
7Strafford County9.7+0.6 pts
8Merrimack County9.5+0.9 pts
9Hillsborough County9.3-0.2 pts
10Rockingham County7.5+0.1 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-2020-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 New Hampshire by uninsured rate, ages 18 to 64 (US model-based estimate), 2020) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-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 New Hampshire by uninsured rate, ages 18 to 64 (US model-based estimate), 2020. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-hampshire-counties?period=2020. 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 New Hampshire by uninsured rate, ages 18 to 64 (US model-based estimate), 2020. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-hampshire-counties?period=2020.

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 New Hampshire by uninsured rate, ages 18 to 64 (US model-based estimate), 2020 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-hampshire-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_new_hampshire_2020,
  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 New Hampshire by uninsured rate, ages 18 to 64 (US model-based estimate), 2020}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-hampshire-counties?period=2020. 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-2020-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 New Hampshire by uninsured rate, ages 18 to 64 (US model-based estimate), 2020
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-2020-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-hampshire-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-hampshire-counties?period=2020.
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-2020-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)?

Carroll County, with 12.3% in 2020, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Rockingham County, with 7.5% in 2020.

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 New Hampshire: more rankings