RANKING · 2024 ACS · 21 SHOWN OF 21

Largest households, New Jersey counties

New Jersey counties ranked by average household size (2023 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

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2000

01Passaic County, NJNJ531,6242.86–

02Union County, NJNJ601,8632.82–

03Middlesex County, NJNJ883,3352.75–

04Bergen County, NJNJ977,0262.68–

05Cumberland County, NJNJ157,1482.68–

06Gloucester County, NJNJ312,6382.67–

07Ocean County, NJNJ673,7462.65–

08Somerset County, NJNJ356,4862.64–

09Essex County, NJNJ896,3792.63–

10Morris County, NJNJ524,2512.62–

11Burlington County, NJNJ481,4392.58–

12Camden County, NJNJ535,7992.57–

13Salem County, NJNJ66,2802.57–

14Mercer County, NJNJ399,2892.56–

15Monmouth County, NJNJ651,0352.54–

16Hunterdon County, NJNJ131,7812.51–

17Sussex County, NJNJ148,0632.50–

18Atlantic County, NJNJ278,6572.47–

19Warren County, NJNJ112,9532.40–

20Hudson County, NJNJ735,0332.37–

21Cape May County, NJNJ93,3902.08–

SHOWING 1–21 OF 21

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