RANKING · 2024 ACS · 21 SHOWN OF 21

Highest Costa Rican population share, New Jersey counties

New Jersey counties ranked by the share of all residents who are Costa Rican origin (2024 American Community Survey). A concentration measure: Costa Rican residents as a percentage of total population. This list covers the 21 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

Highest Costa Rican population share by state

RANKPLACESTATEPOPCOSTA RICAN SHAREVS 2010

01Somerset County, NJNJ356,4861.1%+0.4 pts

02Union County, NJNJ601,8630.6%−0.2 pts

03Passaic County, NJNJ531,6240.6%+0.2 pts

04Mercer County, NJNJ399,2890.5%+0.2 pts

05Morris County, NJNJ524,2510.4%+0.0 pts

06Hunterdon County, NJNJ131,7810.4%+0.2 pts

07Warren County, NJNJ112,9530.3%−0.1 pts

08Ocean County, NJNJ673,7460.2%+0.1 pts

09Middlesex County, NJNJ883,3350.2%+0.1 pts

10Essex County, NJNJ896,3790.2%−0.1 pts

11Monmouth County, NJNJ651,0350.2%+0.1 pts

12Bergen County, NJNJ977,0260.2%−0.0 pts

13Cape May County, NJNJ93,3900.2%+0.1 pts

14Hudson County, NJNJ735,0330.1%−0.0 pts

15Burlington County, NJNJ481,4390.1%+0.1 pts

16Cumberland County, NJNJ157,1480.1%+0.1 pts

17Sussex County, NJNJ148,0630.1%+0.1 pts

18Camden County, NJNJ535,7990.1%+0.0 pts

19Atlantic County, NJNJ278,6570.0%–

20Salem County, NJNJ66,2800.0%–

21Gloucester County, NJNJ312,6380.0%+0.0 pts

SHOWING 1–21 OF 21

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES