RANKING · 2020 CENSUS · 19 SHOWN OF 19

Largest Costa Rican population, New Jersey counties · 2020

New Jersey counties ranked by the number of residents who are Costa Rican origin, 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 19 counties in New Jersey that qualify, ranked against each other statewide.

Costa Rican Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share

YEAR2010 2020 2024

Largest Costa Rican population by state

RANKPLACESTATEPOPCOSTA RICAN POPULATIONVS 2010

01Somerset County, NJNJ356,4863,609+63%

02Union County, NJNJ601,8632,985−25%

03Passaic County, NJNJ531,6242,424+32%

04Mercer County, NJNJ399,2892,061+76%

05Morris County, NJNJ524,2512,017+16%

06Bergen County, NJNJ977,0261,807−3%

07Essex County, NJNJ896,3791,685−16%

08Hudson County, NJNJ735,0331,182+29%

09Middlesex County, NJNJ883,335889+24%

10Ocean County, NJNJ673,746772+18%

11Warren County, NJNJ112,953456−0%

12Monmouth County, NJNJ651,035416−21%

13Burlington County, NJNJ481,439338+154%

14Camden County, NJNJ535,799211−2%

15Atlantic County, NJNJ278,657204–

16Hunterdon County, NJNJ131,781181−17%

17Gloucester County, NJNJ312,638128+288%

18Sussex County, NJNJ148,06313+30%

19Cape May County, NJNJ93,3902−97%

SHOWING 1–19 OF 19

Download CSV (full list, 19 rows)

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