New Jersey County Map, List of Counties in New Jersey with Seats

The U.S. state of New Jersey is divided into 21 Counties. Explore the New Jersey County Map, all Counties list along with their County Seats in alphabetical order and their population, areas and the date of formation.

New Jersey County Map

New Jersey County Map About New Jersey County Map: The map showing the county boundary, all counties boundary, state capital and neighbouring states.
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    The U.S. state of New Jersey has 21 Counties. This is list of New Jersey Counties and County Seats in alphabetical order along with check their population, areas and the date of formation.

    List of Counties in New Jersey with County Seats

    S.NCountyCounty SeatPopulationArea Formed
    1Atlantic CountyMays Landing274,549561 sq mi1837
    2Bergen CountyHackensack905,116234 sq mi1683
    3Burlington CountyMount Holly448,734805 sq mi1694
    4Camden CountyCamden513,657222 sq mi1844
    5Cape May CountyCape May Court House97,265255 sq mi1692
    6Cumberland CountyBridgeton156,898489 sq mi1748
    7Essex CountyNewark783,969126 sq mi1683
    8Gloucester CountyWoodbury288,288325 sq mi1686
    9Hudson CountyJersey City634,26647 sq mi1840
    10Hunterdon CountyFlemington128,349430 sq mi1714
    11Mercer CountyTrenton366,513226 sq mi1838
    12Middlesex CountyNew Brunswick809,858311 sq mi1683
    13Monmouth CountyFreehold Borough630,380472 sq mi1683
    14Morris CountyMorristown492,276469 sq mi1739
    15Ocean CountyToms River576,567636 sq mi1850
    16Passaic CountyPaterson501,226185 sq mi1837
    17Salem CountySalem66,083338 sq mi1694
    18Somerset CountySomerville323,444305 sq mi1688
    19Sussex CountyNewton149,265521 sq mi1753
    20Union CountyElizabeth536,499103 sq mi1857
    21Warren CountyBelvidere108,692358 sq mi1824
    Edited by: Vijay Kanth | Updated: September 22, 2021