RANKING · 1990 CENSUS · 21 SHOWN OF 21

Most racially diverse, New Jersey counties · 1990

New Jersey counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2023 ACS). This list covers the 21 counties in New Jersey that qualify, ranked against each other statewide.

Flip the list · Least racially diverse, US counties →

New JerseyAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDOldest by median age Youngest by median age Most foreign-born residents Highest uninsured rate Most women Most men

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Hudson County, NJNJ735,03381−3%

02Essex County, NJNJ896,37981−1%

03Passaic County, NJNJ531,62474−3%

04Cumberland County, NJNJ157,14867−5%

05Union County, NJNJ601,86366−13%

06Mercer County, NJNJ399,28957−12%

07Camden County, NJNJ535,79957−6%

08Atlantic County, NJNJ278,65756−14%

09Middlesex County, NJNJ883,33552−25%

10Burlington County, NJNJ481,43943−6%

11Bergen County, NJNJ977,02639−27%

12Salem County, NJNJ66,28039−4%

13Monmouth County, NJNJ651,03536−11%

14Somerset County, NJNJ356,48635−32%

15Morris County, NJNJ524,25128−25%

16Gloucester County, NJNJ312,63827−8%

17Cape May County, NJNJ93,39022+6%

18Ocean County, NJNJ673,74618−16%

19Hunterdon County, NJNJ131,78113−24%

20Warren County, NJNJ112,95311−30%

21Sussex County, NJNJ148,06310−25%

SHOWING 1–21 OF 21

Download CSV (full list, 21 rows)How this score is calculated

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES