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

Counties in New Jersey by uninsured rate, under 19 (US model-based estimate)

Union County had the highest uninsured rate, under 19 (US model-based estimate) of 21 counties in 2023, at 5.9%. Gloucester County had the lowest, at 2.6%. The median was 3.7% and the figure for New Jersey was 4.1%. Source: the U.S. Census Bureau.

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Highest5.9Union County
Lowest2.6Gloucester County
Median3.721 counties
New Jersey4.1History

Map of counties, 2023

Atlantic County: 4.4 %Bergen County: 3.5 %Burlington County: 3.3 %Camden County: 3.9 %Cape May County: 4.1 %Cumberland County: 5.8 %Essex County: 5.7 %Gloucester County: 2.6 %Hudson County: 4.8 %Hunterdon County: 2.7 %Mercer County: 4.9 %Middlesex County: 4.6 %Monmouth County: 3 %Morris County: 2.8 %Ocean County: 2.9 %Passaic County: 5.3 %Salem County: 3.7 %Somerset County: 2.8 %Sussex County: 3.2 %Union County: 5.9 %Warren County: 3.2 %
  • Under 2.9
  • 2.9 to 3.3
  • 3.3 to 4.1
  • 4.1 to 4.9
  • 4.9 and over
%, 2023. 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, 2023

Union County: 5.9 %Union County5.9Cumberland County: 5.8 %Cumberland County5.8Essex County: 5.7 %Essex County5.7Passaic County: 5.3 %Passaic County5.3Mercer County: 4.9 %Mercer County4.9Hudson County: 4.8 %Hudson County4.8Middlesex County: 4.6 %Middlesex County4.6Atlantic County: 4.4 %Atlantic County4.4Cape May County: 4.1 %Cape May County4.1Camden County: 3.9 %Camden County3.9Salem County: 3.7 %Salem County3.7Bergen County: 3.5 %Bergen County3.5Burlington County: 3.3 %Burlington County3.3Sussex County: 3.2 %Sussex County3.2Warren County: 3.2 %Warren County3.2Monmouth County: 3 %Monmouth County3Ocean County: 2.9 %Ocean County2.9Morris County: 2.8 %Morris County2.8Somerset County: 2.8 %Somerset County2.8Hunterdon County: 2.7 %Hunterdon County2.7Gloucester County: 2.6 %Gloucester County2.6Union County: 5.9 %Union County5.9Cumberland County: 5.8 %Cumberland County5.8Essex County: 5.7 %Essex County5.7Passaic County: 5.3 %Passaic County5.3Mercer County: 4.9 %Mercer County4.9Hudson County: 4.8 %Hudson County4.8Middlesex County: 4.6 %Middlesex County4.6Atlantic County: 4.4 %Atlantic County4.4Cape May County: 4.1 %Cape May County4.1Camden County: 3.9 %Camden County3.9Salem County: 3.7 %Salem County3.7Bergen County: 3.5 %Bergen County3.5Burlington County: 3.3 %Burlington County3.3Sussex County: 3.2 %Sussex County3.2Warren County: 3.2 %Warren County3.2Monmouth County: 3 %Monmouth County3Ocean County: 2.9 %Ocean County2.9Morris County: 2.8 %Morris County2.8Somerset County: 2.8 %Somerset County2.8Hunterdon County: 2.7 %Hunterdon County2.7Gloucester County: 2.6 %Gloucester County2.6
%. 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

RankCounties2023 (%)Change on 2022
1Union County5.9+0.1 pts
2Cumberland County5.8+1.7 pts
3Essex County5.7+0.7 pts
4Passaic County5.3-0.4 pts
5Mercer County4.9+0.7 pts
6Hudson County4.8+0.4 pts
7Middlesex County4.6+1 pts
8Atlantic County4.4+0.7 pts
9Cape May County4.1+0.2 pts
10Camden County3.9-0.1 pts
11Salem County3.70 pts
12Bergen County3.5+0.7 pts
13Burlington County3.3+0.2 pts
14Sussex County3.2-0.2 pts
14Warren County3.2-0.1 pts
16Monmouth County30 pts
17Ocean County2.9-0.2 pts
18Morris County2.8-0.1 pts
18Somerset County2.8+0.1 pts
20Hunterdon County2.7+0.1 pts
21Gloucester County2.6+0.2 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-2023-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 New Jersey by uninsured rate, under 19 (US model-based estimate), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-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 New Jersey by uninsured rate, under 19 (US model-based estimate), 2023. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2023. 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 New Jersey by uninsured rate, under 19 (US model-based estimate), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2023.

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 New Jersey by uninsured rate, under 19 (US model-based estimate), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_new_jersey_2023,
  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 New Jersey by uninsured rate, under 19 (US model-based estimate), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2023. 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-2023-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 New Jersey by uninsured rate, under 19 (US model-based estimate), 2023
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-2023-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2023.
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-2023-csv.zip. Retrieved 2026-10-12.
ER  -
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Rank Counties in New Jersey by uninsured rate, under 19 (US model-based estimate) using official data, and cite the source.
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Questions

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

Union County, with 5.9% in 2023, according to the U.S. Census Bureau.

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

Gloucester County, with 2.6% 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, 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 New Jersey: more rankings