RANKING · 2010 CENSUS · 21 SHOWN OF 21

Fastest shrinking, New Jersey counties · 2010

New Jersey counties with the steepest population decline from the 2000 census to 2010. This list covers the 21 counties in New Jersey that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Cape May County, NJNJ93,390-4.9%−12.6 pts

02Essex County, NJNJ896,379-1.2%−3.2 pts

03Camden County, NJNJ535,799+0.9%−0.3 pts

04Bergen County, NJNJ977,026+2.4%−4.7 pts

05Monmouth County, NJNJ651,035+2.5%−8.8 pts

06Passaic County, NJNJ531,624+2.5%−5.5 pts

07Union County, NJNJ601,863+2.7%−3.1 pts

08Salem County, NJNJ66,280+2.8%+4.3 pts

09Sussex County, NJNJ148,063+3.5%−6.6 pts

10Hudson County, NJNJ735,033+4.2%−5.9 pts

11Mercer County, NJNJ399,289+4.5%−3.2 pts

12Morris County, NJNJ524,251+4.7%−6.9 pts

13Hunterdon County, NJNJ131,781+5.2%−8.0 pts

14Burlington County, NJNJ481,439+6.0%−1.2 pts

15Warren County, NJNJ112,953+6.1%−5.7 pts

16Cumberland County, NJNJ157,148+7.1%+1.1 pts

17Middlesex County, NJNJ883,335+8.0%−3.7 pts

18Atlantic County, NJNJ278,657+8.7%−3.9 pts

19Somerset County, NJNJ356,486+8.7%−15.1 pts

20Ocean County, NJNJ673,746+12.8%−5.1 pts

21Gloucester County, NJNJ312,638+13.2%+2.5 pts

SHOWING 1–21 OF 21

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS