RANKING · 1990 CENSUS · 21 SHOWN OF 21

Youngest by median age, New Jersey counties · 1990

New Jersey counties with the youngest median age (1990 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 –

01Gloucester County, NJNJ312,63832.5–

02Camden County, NJNJ535,79932.8–

03Sussex County, NJNJ148,06333.0–

04Burlington County, NJNJ481,43933.0–

05Hudson County, NJNJ735,03333.3–

06Passaic County, NJNJ531,62433.5–

07Essex County, NJNJ896,37933.5–

08Middlesex County, NJNJ883,33533.5–

09Cumberland County, NJNJ157,14833.5–

10Atlantic County, NJNJ278,65734.1–

11Mercer County, NJNJ399,28934.2–

12Warren County, NJNJ112,95334.4–

13Somerset County, NJNJ356,48634.9–

14Monmouth County, NJNJ651,03535.0–

15Hunterdon County, NJNJ131,78135.1–

16Salem County, NJNJ66,28035.2–

17Morris County, NJNJ524,25135.3–

18Union County, NJNJ601,86335.9–

19Cape May County, NJNJ93,39037.7–

20Bergen County, NJNJ977,02637.7–

21Ocean County, NJNJ673,74638.5–

SHOWING 1–21 OF 21

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