RANKING · 2010 CENSUS · 21 SHOWN OF 21

Largest Czech population, New Jersey counties · 2010

New Jersey counties ranked by the number of residents who are Czech ancestry, from the 2010 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 21 counties in New Jersey that qualify, ranked against each other statewide. The median across all 21 is 1,355.

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 POPULATIONVS –

01Morris County, NJNJ524,2513,750–

02Bergen County, NJNJ977,0263,628–

03Ocean County, NJNJ673,7463,362–

04Middlesex County, NJNJ883,3352,649–

05Monmouth County, NJNJ651,0352,534–

06Union County, NJNJ601,8631,713–

07Mercer County, NJNJ399,2891,693–

08Somerset County, NJNJ356,4861,589–

09Sussex County, NJNJ148,0631,418–

10Passaic County, NJNJ531,6241,381–

11Burlington County, NJNJ481,4391,355–

12Essex County, NJNJ896,3791,323–

13Camden County, NJNJ535,7991,179–

14Hunterdon County, NJNJ131,781995–

15Warren County, NJNJ112,953967–

16Hudson County, NJNJ735,033852–

17Gloucester County, NJNJ312,638823–

18Atlantic County, NJNJ278,657627–

19Cape May County, NJNJ93,390295–

20Cumberland County, NJNJ157,148223–

21Salem County, NJNJ66,28044–

SHOWING 1–21 OF 21

Download CSV (full list, 21 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS