RANKING · 2020 CENSUS · 21 SHOWN OF 21

Highest American population share, New Jersey counties · 2020

New Jersey counties ranked by the share of all residents who are American ancestry (2020 American Community Survey). A concentration measure: American residents as a percentage of total population. This list covers the 21 counties in New Jersey that qualify, ranked against each other statewide.

American ancestry: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share Largest Iraqi population

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN SHAREVS 2010

01Ocean County, NJNJ673,7465.6%+1.2 pts

02Sussex County, NJNJ148,0635.6%+2.2 pts

03Union County, NJNJ601,8634.6%+1.3 pts

04Salem County, NJNJ66,2804.4%−0.1 pts

05Monmouth County, NJNJ651,0354.0%−0.8 pts

06Essex County, NJNJ896,3793.8%+1.0 pts

07Warren County, NJNJ112,9533.7%−2.7 pts

08Cape May County, NJNJ93,3903.5%−1.2 pts

09Morris County, NJNJ524,2513.3%+0.6 pts

10Cumberland County, NJNJ157,1483.3%−2.3 pts

11Somerset County, NJNJ356,4863.3%−1.6 pts

12Hunterdon County, NJNJ131,7813.2%−0.2 pts

13Middlesex County, NJNJ883,3352.9%+0.0 pts

14Atlantic County, NJNJ278,6572.8%−0.5 pts

15Camden County, NJNJ535,7992.7%+0.2 pts

16Burlington County, NJNJ481,4392.7%−0.2 pts

17Bergen County, NJNJ977,0262.7%+0.3 pts

18Gloucester County, NJNJ312,6382.6%−0.5 pts

19Hudson County, NJNJ735,0332.4%+1.2 pts

20Mercer County, NJNJ399,2892.4%−0.6 pts

21Passaic County, NJNJ531,6242.2%−1.5 pts

SHOWING 1–21 OF 21

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS