RANKING · 2010 CENSUS · 19 SHOWN OF 19

Highest Costa Rican population share, New Jersey counties · 2010

New Jersey counties ranked by the share of all residents who are Costa Rican origin (2023 American Community Survey). A concentration measure: Costa Rican residents as a percentage of total population. This list covers the 19 counties in New Jersey that qualify, ranked against each other statewide.

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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 2000

01Union County, NJNJ601,8630.7%–

02Somerset County, NJNJ356,4860.7%–

03Warren County, NJNJ112,9530.4%–

04Passaic County, NJNJ531,6240.4%–

05Morris County, NJNJ524,2510.4%–

06Mercer County, NJNJ399,2890.3%–

07Essex County, NJNJ896,3790.3%–

08Bergen County, NJNJ977,0260.2%–

09Hunterdon County, NJNJ131,7810.2%–

10Hudson County, NJNJ735,0330.1%–

11Ocean County, NJNJ673,7460.1%–

12Middlesex County, NJNJ883,3350.1%–

13Monmouth County, NJNJ651,0350.1%–

14Cape May County, NJNJ93,3900.1%–

15Camden County, NJNJ535,7990.0%–

16Cumberland County, NJNJ157,1480.0%–

17Burlington County, NJNJ481,4390.0%–

18Gloucester County, NJNJ312,6380.0%–

19Sussex County, NJNJ148,0630.0%–

SHOWING 1–19 OF 19

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