RANKING · 2000 CENSUS · 21 SHOWN OF 21

Youngest by median age, New Jersey counties · 2000

New Jersey counties with the youngest median age (2000 ACS). 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 ZIP codes

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

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 1990

01Hudson County, NJNJ735,03333.6+1%

02Essex County, NJNJ896,37934.7+4%

03Passaic County, NJNJ531,62434.8+4%

04Cumberland County, NJNJ157,14835.6+6%

05Middlesex County, NJNJ883,33535.7+6%

06Camden County, NJNJ535,79935.8+9%

07Mercer County, NJNJ399,28936.0+5%

08Gloucester County, NJNJ312,63836.1+11%

09Union County, NJNJ601,86336.6+2%

10Atlantic County, NJNJ278,65737.0+9%

11Burlington County, NJNJ481,43937.1+12%

12Sussex County, NJNJ148,06337.1+12%

13Somerset County, NJNJ356,48637.2+7%

14Warren County, NJNJ112,95337.6+9%

15Monmouth County, NJNJ651,03537.7+8%

16Morris County, NJNJ524,25137.8+7%

17Salem County, NJNJ66,28038.0+8%

18Hunterdon County, NJNJ131,78138.8+11%

19Bergen County, NJNJ977,02639.1+4%

20Ocean County, NJNJ673,74641.0+6%

21Cape May County, NJNJ93,39042.3+12%

SHOWING 1–21 OF 21

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS