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 (2023 ACS). This list covers the 21 counties in New Jersey that qualify, ranked against each other statewide.

Flip the list · Most racially diverse, US counties →

New JerseyAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Sussex County, NJNJ148,06310−25%

02Warren County, NJNJ112,95311−30%

03Hunterdon County, NJNJ131,78113−24%

04Ocean County, NJNJ673,74618−16%

05Cape May County, NJNJ93,39022+6%

06Gloucester County, NJNJ312,63827−8%

07Morris County, NJNJ524,25128−25%

08Somerset County, NJNJ356,48635−32%

09Monmouth County, NJNJ651,03536−11%

10Salem County, NJNJ66,28039−4%

11Bergen County, NJNJ977,02639−27%

12Burlington County, NJNJ481,43943−6%

13Middlesex County, NJNJ883,33552−25%

14Atlantic County, NJNJ278,65756−14%

15Camden County, NJNJ535,79957−6%

16Mercer County, NJNJ399,28957−12%

17Union County, NJNJ601,86366−13%

18Cumberland County, NJNJ157,14867−5%

19Passaic County, NJNJ531,62474−3%

20Essex County, NJNJ896,37981−1%

21Hudson County, NJNJ735,03381−3%

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