RANKING · 2024 ACS · 21 SHOWN OF 21

Highest Czech population share, New Jersey counties

New Jersey counties ranked by the share of all residents who are Czech ancestry (2024 American Community Survey). A concentration measure: Czech residents as a percentage of total population. This list covers the 21 counties in New Jersey that qualify, ranked against each other statewide.

Czech Americans: full group profile →

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH SHAREVS 2010

01Sussex County, NJNJ148,0630.5%−0.4 pts

02Hunterdon County, NJNJ131,7810.5%−0.3 pts

03Somerset County, NJNJ356,4860.4%−0.1 pts

04Morris County, NJNJ524,2510.3%−0.4 pts

05Warren County, NJNJ112,9530.3%−0.6 pts

06Ocean County, NJNJ673,7460.3%−0.3 pts

07Gloucester County, NJNJ312,6380.3%+0.0 pts

08Mercer County, NJNJ399,2890.3%−0.2 pts

09Burlington County, NJNJ481,4390.3%−0.0 pts

10Monmouth County, NJNJ651,0350.2%−0.2 pts

11Bergen County, NJNJ977,0260.2%−0.2 pts

12Cape May County, NJNJ93,3900.2%−0.1 pts

13Union County, NJNJ601,8630.2%−0.2 pts

14Passaic County, NJNJ531,6240.2%−0.1 pts

15Essex County, NJNJ896,3790.1%−0.0 pts

16Camden County, NJNJ535,7990.1%−0.1 pts

17Middlesex County, NJNJ883,3350.1%−0.2 pts

18Hudson County, NJNJ735,0330.1%−0.0 pts

19Atlantic County, NJNJ278,6570.1%−0.1 pts

20Cumberland County, NJNJ157,1480.1%−0.1 pts

21Salem County, NJNJ66,2800.0%−0.0 pts

SHOWING 1–21 OF 21

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES