New Jersey Map

List of Counties in New Jersey

CountyFIPS CodeCounty SeatLargest CityEstablished inPopulation Density (per mi2)PopulationArea (sq mi)Area (km2)
Atlantic County1Mays LandingGalloway Township1837489.39263,6705611,453
Bergen County3HackensackHackensack16833,868.02932,202234606
Burlington County5Mount HollyEvesham Township1694557.43445,3498052,085
Camden County7CamdenCamden18442,313.77506,471222575
Cape May County9Cape May Court HouseLower Township1692381.4392,039255660
Cumberland County11BridgetonVineland1748320.85149,5274891,267
Essex County13NewarkNewark16836,221.98798,975126326
Gloucester County15WoodburyWashington Township1686887.04291,636325842
Hudson County17Jersey CityJersey City184013,495.02672,39147122
Hunterdon County19FlemingtonRaritan Township1714298.49124,3714301,114
Mercer County21TrentonHamilton Township18381,621.74367,430226585
Middlesex County23New BrunswickEdison16832,604.05825,062311805
Monmouth County25Freehold BoroughMiddletown Township16831,335.55618,7954721,222
Morris County27MorristownParsippany-Troy Hills17391,049.63491,8454691,215
Ocean County29Toms RiverLakewood Township1850629.44607,1866361,647
Passaic County31PatersonPaterson18372,709.33501,826185479
Salem County33SalemPennsville Township1694195.5162,385338875
Somerset County35SomervilleFranklin Township16881,060.47328,934305790
Sussex County37NewtonVernon Township1753286.5140,4885211,349
Union County39ElizabethElizabeth18575,208.73556,341103267
Warren County41BelviderePhillipsburg1824303.61105,267358927