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 (2023 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.

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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 2000

01Sussex County, NJNJ148,0630.5%–

02Hunterdon County, NJNJ131,7810.5%–

03Somerset County, NJNJ356,4860.4%–

04Morris County, NJNJ524,2510.3%–

05Warren County, NJNJ112,9530.3%–

06Ocean County, NJNJ673,7460.3%–

07Gloucester County, NJNJ312,6380.3%–

08Mercer County, NJNJ399,2890.3%–

09Burlington County, NJNJ481,4390.3%–

10Monmouth County, NJNJ651,0350.2%–

11Bergen County, NJNJ977,0260.2%–

12Cape May County, NJNJ93,3900.2%–

13Union County, NJNJ601,8630.2%–

14Passaic County, NJNJ531,6240.2%–

15Essex County, NJNJ896,3790.1%–

16Camden County, NJNJ535,7990.1%–

17Middlesex County, NJNJ883,3350.1%–

18Hudson County, NJNJ735,0330.1%–

19Atlantic County, NJNJ278,6570.1%–

20Cumberland County, NJNJ157,1480.1%–

21Salem County, NJNJ66,2800.0%–

SHOWING 1–21 OF 21

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES