RANKING · 2024 ACS · 21 SHOWN OF 21

Oldest housing stock, New Jersey counties

New Jersey counties ranked by oldest median year of construction (2024 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

RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS 1990

01Passaic County, NJNJ531,6241956+0%

02Union County, NJNJ601,8631956+0%

03Essex County, NJNJ896,3791958+0%

04Bergen County, NJNJ977,0261960+0%

05Salem County, NJNJ66,2801962+0%

06Hudson County, NJNJ735,0331966+1%

07Camden County, NJNJ535,7991967+0%

08Cumberland County, NJNJ157,1481969+1%

09Mercer County, NJNJ399,2891969+1%

10Morris County, NJNJ524,2511971+0%

11Warren County, NJNJ112,9531972+1%

12Sussex County, NJNJ148,0631973+0%

13Middlesex County, NJNJ883,3351974+1%

14Monmouth County, NJNJ651,0351975+1%

15Burlington County, NJNJ481,4391977+1%

16Atlantic County, NJNJ278,6571978+1%

17Hunterdon County, NJNJ131,7811979+1%

18Gloucester County, NJNJ312,6381980+1%

19Cape May County, NJNJ93,3901981+1%

20Ocean County, NJNJ673,7461981+0%

21Somerset County, NJNJ356,4861982+1%

SHOWING 1–21 OF 21

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES