Data / Rankings / Uninsured rate, under 65 (US model-based estimate) / Counties in Connecticut

Counties in Connecticut by uninsured rate, under 65 (US model-based estimate), 2024

Greater Bridgeport Planning Region had the highest uninsured rate, under 65 (US model-based estimate) of 9 counties in 2024, at 9.9%. Lower Connecticut River Valley Planning Region had the lowest, at 4.4%. The median was 6.6% and the figure for Connecticut was 7%. Source: the U.S. Census Bureau.

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Highest9.9Greater Bridgeport Planning Region
Lowest4.4Lower Connecticut River Valley Planning Region
Median6.69 counties
Connecticut7History

Map of counties, 2024

Capitol Planning Region: 6.4 %Greater Bridgeport Planning Region: 9.9 %Lower Connecticut River Valley Planning Region: 4.4 %Naugatuck Valley Planning Region: 6.9 %Northeastern Connecticut Planning Region: 5.9 %Northwest Hills Planning Region: 6.7 %South Central Connecticut Planning Region: 6.6 %Southeastern Connecticut Planning Region: 6.4 %Western Connecticut Planning Region: 7.8 %
  • Under 6.2
  • 6.2 to 6.4
  • 6.4 to 6.7
  • 6.7 to 7.3
  • 7.3 and over
%, 2024. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Greater Bridgeport Planning Region: 9.9 %Greater Bridgeport Planning Region9.9Western Connecticut Planning Region: 7.8 %Western Connecticut Planning Regi…7.8Naugatuck Valley Planning Region: 6.9 %Naugatuck Valley Planning Region6.9Northwest Hills Planning Region: 6.7 %Northwest Hills Planning Region6.7South Central Connecticut Planning Region: 6.6 %South Central Connecticut Plannin…6.6Capitol Planning Region: 6.4 %Capitol Planning Region6.4Southeastern Connecticut Planning Region: 6.4 %Southeastern Connecticut Planning…6.4Northeastern Connecticut Planning Region: 5.9 %Northeastern Connecticut Planning…5.9Lower Connecticut River Valley Planning Region: 4.4 %Lower Connecticut River Valley Pl…4.4Greater Bridgeport Planning Region: 9.9 %Greater Bridgeport Planning Region9.9Western Connecticut Planning Region: 7.8 %Western Connecticut Planning Region7.8Naugatuck Valley Planning Region: 6.9 %Naugatuck Valley Planning Region6.9Northwest Hills Planning Region: 6.7 %Northwest Hills Planning Region6.7South Central Connecticut Planning Region: 6.6 %South Central Connecticut Planning Region6.6Capitol Planning Region: 6.4 %Capitol Planning Region6.4Southeastern Connecticut Planning Region: 6.4 %Southeastern Connecticut Planning Region6.4Northeastern Connecticut Planning Region: 5.9 %Northeastern Connecticut Planning Region5.9Lower Connecticut River Valley Planning Region: 4.4 %Lower Connecticut River Valley Planning Region4.4
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Greater Bridgeport Planning Region9.9+0.3 pts
2Western Connecticut Planning Region7.8-0.7 pts
3Naugatuck Valley Planning Region6.9+0.9 pts
4Northwest Hills Planning Region6.7+0.4 pts
5South Central Connecticut Planning Region6.6+0.5 pts
6Capitol Planning Region6.4+0.6 pts
6Southeastern Connecticut Planning Region6.4+1 pts
8Northeastern Connecticut Planning Region5.9+0.9 pts
9Lower Connecticut River Valley Planning Region4.4-0.1 pts

Other periods

About this ranking

People under 65 without health insurance coverage of any kind, as a percentage of all people under 65. 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. People 65 and over are left out because nearly all of them have Medicare.

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 65, 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 65, all races, both sexes, all income levels, states and counties (Counties in Connecticut by uninsured rate, under 65 (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 65, all races, both sexes, all income levels, states and counties, Counties in Connecticut by uninsured rate, under 65 (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-65/connecticut-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Counties in Connecticut by uninsured rate, under 65 (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-65/connecticut-counties.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Connecticut by uninsured rate, under 65 (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-65/connecticut-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_connecticut_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Connecticut by uninsured rate, under 65 (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-65/connecticut-counties. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, 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 65, all races, both sexes, all income levels, states and counties: Counties in Connecticut by uninsured rate, under 65 (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-65/connecticut-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/connecticut-counties.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, 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 Counties in Connecticut by uninsured rate, under 65 (US model-based estimate) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_under_65","level":"province","within":"Connecticut","limit":10}
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Questions

Which county has the highest uninsured rate, under 65 (US model-based estimate)?

Greater Bridgeport Planning Region, with 9.9% in 2024, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 65 (US model-based estimate)?

Lower Connecticut River Valley Planning Region, with 4.4% 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 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 65 (US model-based estimate): other rankings

Counties in Connecticut: more rankings