RANKING · 1990 CENSUS · 21 SHOWN OF 21

Least racially diverse, New Jersey counties · 1990

New Jersey counties with the lowest CensusEasy Diversity Score, where most residents share the same 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.

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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 –

01Sussex County, NJNJ148,0639–

02Warren County, NJNJ112,95310–

03Hunterdon County, NJNJ131,78112–

04Ocean County, NJNJ673,74616–

05Cape May County, NJNJ93,39020–

06Morris County, NJNJ524,25126–

07Gloucester County, NJNJ312,63826–

08Somerset County, NJNJ356,48633–

09Monmouth County, NJNJ651,03534–

10Salem County, NJNJ66,28037–

11Bergen County, NJNJ977,02638–

12Burlington County, NJNJ481,43941–

13Middlesex County, NJNJ883,33548–

14Camden County, NJNJ535,79951–

15Atlantic County, NJNJ278,65752–

16Mercer County, NJNJ399,28954–

17Cumberland County, NJNJ157,14860–

18Union County, NJNJ601,86365–

19Passaic County, NJNJ531,62467–

20Essex County, NJNJ896,37978–

21Hudson County, NJNJ735,03381–

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