RANKING · 2020 CENSUS · 21 SHOWN OF 21

Largest Slovak population, New Jersey counties · 2020

New Jersey counties ranked by the number of residents who are Slovak ancestry, from the 2020 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.

Slovak 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

RANKPLACESTATEPOPSLOVAK POPULATIONVS 2010

01Middlesex County, NJNJ883,3354,075−33%

02Ocean County, NJNJ673,7463,009−22%

03Monmouth County, NJNJ651,0352,707−5%

04Union County, NJNJ601,8632,553−17%

05Morris County, NJNJ524,2512,506−21%

06Bergen County, NJNJ977,0262,247−23%

07Burlington County, NJNJ481,4392,119−2%

08Somerset County, NJNJ356,4862,083−28%

09Mercer County, NJNJ399,2891,688−42%

10Passaic County, NJNJ531,6241,100−46%

11Gloucester County, NJNJ312,6381,065+19%

12Hunterdon County, NJNJ131,7811,059−27%

13Sussex County, NJNJ148,063815−30%

14Hudson County, NJNJ735,033798−37%

15Camden County, NJNJ535,799789−33%

16Essex County, NJNJ896,379767−43%

17Warren County, NJNJ112,953673−8%

18Atlantic County, NJNJ278,657582−7%

19Cape May County, NJNJ93,390281+18%

20Cumberland County, NJNJ157,148120−35%

21Salem County, NJNJ66,28084−31%

SHOWING 1–21 OF 21

Download CSV (full list, 21 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS