Data / Rankings / Uninsured rate, all ages (US) / Counties in New Jersey

Counties in New Jersey by uninsured rate, all ages (US)

Union County had the highest uninsured rate, all ages (US) of 21 counties in 2023, at 12.4%. Hunterdon County had the lowest, at 2.9%. The median was 5.7% and the figure for New Jersey was 7.4%. Source: the U.S. Census Bureau.

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Highest12.4Union County
Lowest2.9Hunterdon County
Median5.721 counties
New Jersey7.4History

Map of counties, 2023

Atlantic County: 7.5 %Bergen County: 6.2 %Burlington County: 3.8 %Camden County: 6.4 %Cape May County: 5.6 %Cumberland County: 10.2 %Essex County: 11.6 %Gloucester County: 4.2 %Hudson County: 11.2 %Hunterdon County: 2.9 %Mercer County: 7.6 %Middlesex County: 7.1 %Monmouth County: 5.2 %Morris County: 4.7 %Ocean County: 4.2 %Passaic County: 12.1 %Salem County: 5.1 %Somerset County: 5.7 %Sussex County: 3.5 %Union County: 12.4 %Warren County: 4.7 %
  • Under 4.2
  • 4.2 to 5.2
  • 5.2 to 6.4
  • 6.4 to 10
  • 10 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Union County: 12.4 %Union County12.4Passaic County: 12.1 %Passaic County12.1Essex County: 11.6 %Essex County11.6Hudson County: 11.2 %Hudson County11.2Cumberland County: 10.2 %Cumberland County10.2Mercer County: 7.6 %Mercer County7.6Atlantic County: 7.5 %Atlantic County7.5Middlesex County: 7.1 %Middlesex County7.1Camden County: 6.4 %Camden County6.4Bergen County: 6.2 %Bergen County6.2Somerset County: 5.7 %Somerset County5.7Cape May County: 5.6 %Cape May County5.6Monmouth County: 5.2 %Monmouth County5.2Salem County: 5.1 %Salem County5.1Morris County: 4.7 %Morris County4.7Warren County: 4.7 %Warren County4.7Gloucester County: 4.2 %Gloucester County4.2Ocean County: 4.2 %Ocean County4.2Burlington County: 3.8 %Burlington County3.8Sussex County: 3.5 %Sussex County3.5Hunterdon County: 2.9 %Hunterdon County2.9Union County: 12.4 %Union County12.4Passaic County: 12.1 %Passaic County12.1Essex County: 11.6 %Essex County11.6Hudson County: 11.2 %Hudson County11.2Cumberland County: 10.2 %Cumberland County10.2Mercer County: 7.6 %Mercer County7.6Atlantic County: 7.5 %Atlantic County7.5Middlesex County: 7.1 %Middlesex County7.1Camden County: 6.4 %Camden County6.4Bergen County: 6.2 %Bergen County6.2Somerset County: 5.7 %Somerset County5.7Cape May County: 5.6 %Cape May County5.6Monmouth County: 5.2 %Monmouth County5.2Salem County: 5.1 %Salem County5.1Morris County: 4.7 %Morris County4.7Warren County: 4.7 %Warren County4.7Gloucester County: 4.2 %Gloucester County4.2Ocean County: 4.2 %Ocean County4.2Burlington County: 3.8 %Burlington County3.8Sussex County: 3.5 %Sussex County3.5Hunterdon County: 2.9 %Hunterdon County2.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Union County12.4+0.2 pts
2Passaic County12.1-0.4 pts
3Essex County11.60 pts
4Hudson County11.2-0.4 pts
5Cumberland County10.2+0.7 pts
6Mercer County7.6+0.6 pts
7Atlantic County7.5-0.1 pts
8Middlesex County7.1+0.4 pts
9Camden County6.4-0.3 pts
10Bergen County6.2-0.4 pts
11Somerset County5.70 pts
12Cape May County5.60 pts
13Monmouth County5.2+0.2 pts
14Salem County5.1+0.3 pts
15Morris County4.7+0.1 pts
15Warren County4.7-0.3 pts
17Gloucester County4.2-0.1 pts
18Ocean County4.2-0.3 pts
19Burlington County3.8-0.2 pts
20Sussex County3.5-0.1 pts
21Hunterdon County2.9+0.1 pts

Other periods

About this ranking

People without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population. 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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs (Counties in New Jersey by uninsured rate, all ages (US), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in New Jersey by uninsured rate, all ages (US), 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate/new-jersey-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Counties in New Jersey by uninsured rate, all ages (US), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate/new-jersey-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in New Jersey by uninsured rate, all ages (US), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate/new-jersey-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_new_jersey_2023,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in New Jersey by uninsured rate, all ages (US), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/new-jersey-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in New Jersey by uninsured rate, all ages (US), 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate/new-jersey-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/new-jersey-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.
ER  -
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Rank Counties in New Jersey by uninsured rate, all ages (US) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, all ages (US)?

Union County, with 12.4% in 2023, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, all ages (US)?

Hunterdon County, with 2.9% in 2023.

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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, all ages (US): other rankings

Counties in New Jersey: more rankings