New Jersey Counties by Population (2024)

Population

100K

200K

300K

400K

500K

600K

700K

800K

900K

Hover/click a county for data.
County
2024 Pop.
Change (2020)
Area (mi²)
Density (/mi²)
Location
Bergen County961,9320.86%904,128Bergen County location
Middlesex County866,1520.55%1192,803Middlesex County location
Essex County852,510-0.87%496,766Essex County location
Hudson County708,563-1.84%1815,404Hudson County location
Ocean County662,7313.8%2421,055Ocean County location
Monmouth County641,370-0.23%1811,370Monmouth County location
Union County575,0350.24%405,583Union County location
Camden County529,7431.27%852,397Camden County location
Morris County517,6271.81%1781,123Morris County location
Passaic County513,156-1.96%722,759Passaic County location
Burlington County472,2332.29%308591Burlington County location
Mercer County382,563-1.01%861,708Mercer County location
Somerset County350,6371.71%1171,161Somerset County location
Gloucester County310,0792.48%124963Gloucester County location
Atlantic County275,0440.31%215495Atlantic County location
Cumberland County153,305-0.27%186317Cumberland County location
Sussex County146,6891.93%200283Sussex County location
Hunterdon County130,5611.38%165305Hunterdon County location
Warren County111,6011.9%138313Warren County location
Cape May County93,815-1.29%97372Cape May County location
Salem County65,5191.05%128197Salem County location
  1. New Jersey State Data Center
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)

Sources