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. The median across all 21 is 0.2%. Biggest climber in the top 100 since 2020: Cape May County, NJ, up 6 places to #13.

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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 2010

01Somerset County, NJNJ356,4861.1%+0.4 pts

02▲1Union County, NJNJ601,8630.6%−0.2 pts

03▲1Passaic County, NJNJ531,6240.6%+0.2 pts

04▼2Mercer County, NJNJ399,2890.5%+0.2 pts

05▲1Morris County, NJNJ524,2510.4%0.0 pts

06▲4Hunterdon County, NJNJ131,7810.4%+0.2 pts

07▼2Warren County, NJNJ112,9530.3%−0.1 pts

08▲3Ocean County, NJNJ673,7460.2%+0.1 pts

09▲3Middlesex County, NJNJ883,3350.2%+0.1 pts

10▼3Essex County, NJNJ896,3790.2%−0.1 pts

11▲4Monmouth County, NJNJ651,0350.2%+0.1 pts

12▼4Bergen County, NJNJ977,0260.2%0.0 pts

13▲6Cape May County, NJNJ93,3900.2%+0.1 pts

14▼5Hudson County, NJNJ735,0330.1%0.0 pts

15▼1Burlington County, NJNJ481,4390.1%+0.1 pts

16Cumberland County, NJNJ157,1480.1%+0.1 pts

17▲1Sussex County, NJNJ148,0630.1%+0.1 pts

18▼1Camden County, NJNJ535,7990.1%0.0 pts

19▼6Atlantic County, NJNJ278,6570.0%–

20Salem County, NJNJ66,2800.0%–

21▼5Gloucester County, NJNJ312,6380.0%0.0 pts

SHOWING 1–21 OF 21

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES