List of counties in New Jersey

Wikimedia list article

There are 21 counties in the U.S. state of New Jersey. These counties together have 566 municipalities, or administrative entities composed of clearly defined territory; 250 boroughs, 52 cities, 15 towns, 245 townships, and 4 villages.[1] In New Jersey, a county is a local level of government between the state and municipalities. County government in New Jersey includes a Board of Chosen Freeholders,[2] sheriff, clerk, and surrogate (responsible for uncontested and routine probate),.[3] All of these jobs are elected officials. Counties are responsible for the maintenance of jails, parks, and certain roads.[4] The site of a county's administration and courts is called the county seat.

The shape of New Jersey divided by black lines into the different counties. Larger counties are in the center and northwest, with smaller counties in the northeast; see the list for details.
New Jersey's 21 counties

FIPS codeEdit

The Federal Information Processing Standard (FIPS) code, used by the United States government to uniquely identify counties, is provided with each entry. FIPS codes are five digit numbers. For New Jersey the codes start with 34 and are completed with the three digit county code. The FIPS code for each county in the table links to census data for that county.[5]


FIPS Code[5] County Seat[6] Created[6] Formed from Named for[7] Population [8] Area[6] Map
Atlantic County 001 Mays Landing 1837 Gloucester County The Atlantic Ocean, which forms the county's eastern border 274,549 561 sq mi
(1,453 km2)
Bergen County 003 Hackensack 1683 One of four original counties created in East Jersey Bergen, New Netherland settlement, itself named for Bergen, North Holland 905,116 234 sq mi
(606 km2)
Burlington County 005 Mount Holly 1694 One of two original counties created in West Jersey The old ancient name for an inland market near Bridlington, England 448,734 805 sq mi
(2,085 km2)
Camden County 007 Camden 1844 Gloucester County Charles Pratt, 1st Earl Camden (1714–1794), an English supporter of the colonists during the American Revolution[9] 513,657 222 sq mi
(575 km2)
Cape May County 009 Cape May Court House 1692 Burlington County The 17th-century Dutch explorer Cornelius Jacobsen Mey, who explored and surveyed the Delaware Bay to the south of the county 97,265 255 sq mi
(660 km2)
Cumberland County 011 Bridgeton 1748 Salem County Prince William, Duke of Cumberland (1721–1765), second son of George II of England and military victor at the Battle of Culloden in 1746 156,898 489 sq mi
(1,267 km2)
Essex County 013 Newark 1683 One of four original counties created in East Jersey The county of Essex in England 783,969 126 sq mi
(326 km2)
Gloucester County 015 Woodbury 1686 Burlington County The city of Gloucester, England 288,288 325 sq mi
(842 km2)
Hudson County 017 Jersey City 1840 Bergen County The English explorer Henry Hudson (d. 1611), who explored portions of New Jersey's coastline 634,266 47 sq mi
(122 km2)
Hunterdon County 019 Flemington 1714 Burlington County Robert Hunter (1664–1734), the Colonial Governor of New Jersey from 1710 to 1720 128,349 430 sq mi
(1,114 km2)
Mercer County 021 Trenton 1838 Burlington County, Hunterdon County, Middlesex County, and Somerset County The Continental Army General Hugh Mercer (1726–1777), who died at the Battle of Princeton[10] 366,513 226 sq mi
(585 km2)
Middlesex County 023 New Brunswick 1683 One of four original counties created in East Jersey The former county of Middlesex in England 809,858 311 sq mi
(805 km2)
Monmouth County 025 Freehold Borough 1683 One of four original counties created in East Jersey The historic county of Monmouthshire in Wales 630,380 472 sq mi
(1,222 km2)
Morris County 027 Morristown 1739 Hunterdon County Colonel Lewis Morris (1671–1746), colonial governor of New Jersey at the time of the county's formation[11][12] 492,276 469 sq mi
(1,215 km2)
Ocean County 029 Toms River 1850 Monmouth County The Atlantic Ocean, which forms the eastern border of New Jersey 576,567 916 sq mi
(2,372 km2)
Passaic County 031 Paterson 1837 Bergen County and Essex County "Pasaeck", a Lenape word meaning "valley" 501,226 185 sq mi
(479 km2)
Salem County 033 Salem 1694 One of two original counties created in West Jersey A Hebrew word meaning "peace" 66,083 338 sq mi
(875 km2)
Somerset County 035 Somerville 1688 Middlesex County The county of Somerset in England 323,444 305 sq mi
(790 km2)
Sussex County 037 Newton 1753 Morris County The county of Sussex in England 149,265 521 sq mi
(1,349 km2)
Union County 039 Elizabeth 1857 Essex County The union of the United States, which was being threatened by the dispute over slavery 536,499 103 sq mi
(267 km2)
Warren County 041 Belvidere 1824 Sussex County The American Revolutionary War General Joseph Warren (1741–1775), killed at the Battle of Bunker Hill 108,692 358 sq mi
(927 km2)


  1. "New Jersey – Place and County Subdivision". U.S. Census Bureau. Retrieved September 6, 2009.
  2. Coppa, Frank J. (2000). County government: a guide to efficient and accountable government. Greenwood Publishing Group. pp. 39–40. ISBN 9780275968298. Retrieved August 31, 2009.
  3. Coppa, County government, p. 165
  4. "An Overview of County Government". National Association of Counties. Retrieved February 1, 2011.
  5. 5.0 5.1 "EPA County FIPS Code Listing". US Environmental Protection Agency. Retrieved July 24, 2007.
  6. 6.0 6.1 6.2 "NACo – Find a county". National Association of Counties. Archived from the original on January 12, 2008. Retrieved January 25, 2008.
  7. "The Origin of New Jersey Place Names" (PDF). Federal Writers' Program. 1938. Retrieved April 25, 2008.
  8. Bureau, U. S. Census. "American FactFinder".
  9. Greenberg, Gail (August 30, 2009). "A Brief History of Camden County". Camden County Board of Freeholders. Archived from the original on June 23, 2009. Retrieved August 31, 2009.
  10. "History". Mercer County Cultural & Heritage Commission. Retrieved August 31, 2009.
  11. "The Land Past and Present". Morris County Board of Chosen Freeholders. Retrieved August 30, 2009.
  12. "How did our county get its name?". Morris County Library. July 26, 2008. Retrieved August 31, 2009.