RANKING · 2010 CENSUS · 21 SHOWN OF 21

Highest Czech population share, New Jersey counties · 2010

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, NJNJ148,0630.9%–

02Warren County, NJNJ112,9530.9%–

03Hunterdon County, NJNJ131,7810.8%–

04Morris County, NJNJ524,2510.8%–

05Ocean County, NJNJ673,7460.6%–

06Somerset County, NJNJ356,4860.5%–

07Mercer County, NJNJ399,2890.5%–

08Bergen County, NJNJ977,0260.4%–

09Monmouth County, NJNJ651,0350.4%–

10Middlesex County, NJNJ883,3350.3%–

11Union County, NJNJ601,8630.3%–

12Burlington County, NJNJ481,4390.3%–

13Cape May County, NJNJ93,3900.3%–

14Gloucester County, NJNJ312,6380.3%–

15Passaic County, NJNJ531,6240.3%–

16Camden County, NJNJ535,7990.2%–

17Atlantic County, NJNJ278,6570.2%–

18Essex County, NJNJ896,3790.2%–

19Cumberland County, NJNJ157,1480.1%–

20Hudson County, NJNJ735,0330.1%–

21Salem County, NJNJ66,2800.1%–

SHOWING 1–21 OF 21

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