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)

Essex County had the highest uninsured rate, under 19 (US model-based estimate) of 21 counties in 2018, at 5.1%. Somerset County had the lowest, at 2.4%. The median was 3.4% and the figure for New Jersey was 3.8%. Source: the U.S. Census Bureau.

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Highest5.1Essex County
Lowest2.4Somerset County
Median3.421 counties
New Jersey3.8History

Map of counties, 2018

Atlantic County: 4.4 %Bergen County: 3.8 %Burlington County: 2.8 %Camden County: 3.5 %Cape May County: 3.9 %Cumberland County: 4.3 %Essex County: 5.1 %Gloucester County: 2.4 %Hudson County: 4.9 %Hunterdon County: 2.6 %Mercer County: 4 %Middlesex County: 3.1 %Monmouth County: 3.4 %Morris County: 2.9 %Ocean County: 3.2 %Passaic County: 5 %Salem County: 3.3 %Somerset County: 2.4 %Sussex County: 2.9 %Union County: 4.5 %Warren County: 3.4 %
  • Under 2.9
  • 2.9 to 3.3
  • 3.3 to 3.8
  • 3.8 to 4.4
  • 4.4 and over
%, 2018. 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, 2018

Essex County: 5.1 %Essex County5.1Passaic County: 5 %Passaic County5Hudson County: 4.9 %Hudson County4.9Union County: 4.5 %Union County4.5Atlantic County: 4.4 %Atlantic County4.4Cumberland County: 4.3 %Cumberland County4.3Mercer County: 4 %Mercer County4Cape May County: 3.9 %Cape May County3.9Bergen County: 3.8 %Bergen County3.8Camden County: 3.5 %Camden County3.5Monmouth County: 3.4 %Monmouth County3.4Warren County: 3.4 %Warren County3.4Salem County: 3.3 %Salem County3.3Ocean County: 3.2 %Ocean County3.2Middlesex County: 3.1 %Middlesex County3.1Morris County: 2.9 %Morris County2.9Sussex County: 2.9 %Sussex County2.9Burlington County: 2.8 %Burlington County2.8Hunterdon County: 2.6 %Hunterdon County2.6Gloucester County: 2.4 %Gloucester County2.4Somerset County: 2.4 %Somerset County2.4Essex County: 5.1 %Essex County5.1Passaic County: 5 %Passaic County5Hudson County: 4.9 %Hudson County4.9Union County: 4.5 %Union County4.5Atlantic County: 4.4 %Atlantic County4.4Cumberland County: 4.3 %Cumberland County4.3Mercer County: 4 %Mercer County4Cape May County: 3.9 %Cape May County3.9Bergen County: 3.8 %Bergen County3.8Camden County: 3.5 %Camden County3.5Monmouth County: 3.4 %Monmouth County3.4Warren County: 3.4 %Warren County3.4Salem County: 3.3 %Salem County3.3Ocean County: 3.2 %Ocean County3.2Middlesex County: 3.1 %Middlesex County3.1Morris County: 2.9 %Morris County2.9Sussex County: 2.9 %Sussex County2.9Burlington County: 2.8 %Burlington County2.8Hunterdon County: 2.6 %Hunterdon County2.6Gloucester County: 2.4 %Gloucester County2.4Somerset County: 2.4 %Somerset County2.4
%. 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

RankCounties2018 (%)Change on 2017
1Essex County5.1+0.7 pts
2Passaic County5+0.7 pts
3Hudson County4.9+0.7 pts
4Union County4.5+0.2 pts
5Atlantic County4.4+0.3 pts
6Cumberland County4.3-0.3 pts
7Mercer County4+0.6 pts
8Cape May County3.9+0.2 pts
9Bergen County3.8-0.3 pts
10Camden County3.5+0.5 pts
11Monmouth County3.4+0.4 pts
11Warren County3.4-0.4 pts
13Salem County3.3-0.4 pts
14Ocean County3.2+0.4 pts
15Middlesex County3.1-0.5 pts
16Morris County2.9+0.4 pts
16Sussex County2.90 pts
18Burlington County2.8+0.4 pts
19Hunterdon County2.6-0.3 pts
20Gloucester County2.4-0.1 pts
20Somerset County2.4-0.4 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-2018-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), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-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), 2018. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2018. 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), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2018.

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), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_new_jersey_2018,
  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), 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2018. 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-2018-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), 2018
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-2018-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/new-jersey-counties?period=2018.
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-2018-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

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

Essex County, with 5.1% in 2018, according to the U.S. Census Bureau.

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

Somerset County, with 2.4% in 2018.

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