RANKING · 2000 CENSUS · 21 SHOWN OF 21

Fastest shrinking, New Jersey counties · 2000

New Jersey counties with the steepest population decline since the prior decennial census. 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

YEAR2000 2010 2020

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Salem County, NJNJ66,280-1.5%+0%

02Camden County, NJNJ535,799+1.2%+0%

03Essex County, NJNJ896,379+2.0%+0%

04Union County, NJNJ601,863+5.8%+0%

05Cumberland County, NJNJ157,148+6.1%+0%

06Bergen County, NJNJ977,026+7.1%+0%

07Burlington County, NJNJ481,439+7.2%+0%

08Cape May County, NJNJ93,390+7.6%+0%

09Mercer County, NJNJ399,289+7.7%+0%

10Passaic County, NJNJ531,624+7.9%+0%

11Sussex County, NJNJ148,063+10.1%+0%

12Hudson County, NJNJ735,033+10.1%+0%

13Gloucester County, NJNJ312,638+10.7%+0%

14Monmouth County, NJNJ651,035+11.2%+0%

15Morris County, NJNJ524,251+11.6%+0%

16Middlesex County, NJNJ883,335+11.7%+0%

17Warren County, NJNJ112,953+11.8%+0%

18Atlantic County, NJNJ278,657+12.6%+0%

19Hunterdon County, NJNJ131,781+13.2%+0%

20Ocean County, NJNJ673,746+17.9%+0%

21Somerset County, NJNJ356,486+23.8%+0%

SHOWING 1–21 OF 21

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