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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About Counties of New Jersey

U.S state of New Jersey is situated in the Mid-Atlantic and North-eastern part of the country. The state is bordered with the state called New York in the north and east, Atlantic Ocean lies to the east, southeast and south of the state, Delaware River and Pennsylvania are located to the west of the state. New Jersey is the fifth smallest state by area and the eleventh most populated state. The capital city of the state is Trenton.

Counties in New Jersey are 21 in number. These counties consist of 565 municipalities, administrative entities which are composed of 250 borough, 52 cities, 15 towns, 244 townships and 4 villages. Municipalities of all New Jersey Counties are classified as one of the five types of local government. They are Borough, City, Township, Town and Village. Counties of New Jersey are governed by a Board of County Commissioners that serves as the legislative and executive body. The board may consist of three, five, seven or nine members. The local government provides various services like health facilities like adult care, women`s health, child health, public services like waste collection, recycling and disposal, social care, schools, housing and planning , business support, registrar services and pest control.

Among Counties of New Jersey Bergen County has the highest density of population with 955,732. The other counties that have higher level of density of population are Essex County and Middlesex County with 863,728 and 863,162 respectively. Burlington County is the biggest county by area in the state of New Jersey covering 827 square miles. The smallest county in geographically is Hudson County. Counties in New Jersey are unique in its nature, as they have beautiful beaches busy roads, great food items diverse culture and so on.

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 On: June 13, 2022