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 (1990 ACS). This list covers the 21 counties in New Jersey that qualify, ranked against each other statewide. The median across all 21 is 38.

Flip the list · Least racially diverse, US counties →

New JerseyAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPDIVERSITY SCOREVS –

01Hudson County, NJNJ735,03381–

02Essex County, NJNJ896,37978–

03Passaic County, NJNJ531,62467–

04Union County, NJNJ601,86365–

05Cumberland County, NJNJ157,14860–

06Mercer County, NJNJ399,28954–

07Atlantic County, NJNJ278,65752–

08Camden County, NJNJ535,79951–

09Middlesex County, NJNJ883,33548–

10Burlington County, NJNJ481,43941–

11Bergen County, NJNJ977,02638–

12Salem County, NJNJ66,28037–

13Monmouth County, NJNJ651,03534–

14Somerset County, NJNJ356,48633–

15Gloucester County, NJNJ312,63826–

16Morris County, NJNJ524,25126–

17Cape May County, NJNJ93,39020–

18Ocean County, NJNJ673,74616–

19Hunterdon County, NJNJ131,78112–

20Warren County, NJNJ112,95310–

21Sussex County, NJNJ148,0639–

SHOWING 1–21 OF 21

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

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS