RANKING · 2020 CENSUS · 21 SHOWN OF 21

Oldest housing stock, New Jersey counties · 2020

New Jersey counties ranked by oldest median year of construction (2020 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

01Union County, NJNJ601,8631955+0%

02Essex County, NJNJ896,3791956+0%

03Passaic County, NJNJ531,6241956+0%

04Bergen County, NJNJ977,0261959+0%

05Hudson County, NJNJ735,0331960+1%

06Mercer County, NJNJ399,2891964+0%

07Salem County, NJNJ66,2801964+0%

08Camden County, NJNJ535,7991966+0%

09Cumberland County, NJNJ157,1481968+0%

10Morris County, NJNJ524,2511970+0%

11Warren County, NJNJ112,9531971+1%

12Sussex County, NJNJ148,0631972+0%

13Middlesex County, NJNJ883,3351972+0%

14Monmouth County, NJNJ651,0351973+1%

15Atlantic County, NJNJ278,6571974+0%

16Burlington County, NJNJ481,4391976+1%

17Gloucester County, NJNJ312,6381978+1%

18Hunterdon County, NJNJ131,7811978+1%

19Cape May County, NJNJ93,3901978+1%

20Somerset County, NJNJ356,4861980+1%

21Ocean County, NJNJ673,7461980+0%

SHOWING 1–21 OF 21

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