New Jersey
List of counties

| County  | FIPS code | County seat | Largest City | Est>  | Formed from | Named for | Density (per mi2) | Pop>  | Area | Map   |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  Wilayah Atlantic | 001 | Mays Landing | Egg Harbor Township 47,842 | 1837 | Gloucester County | The Atlantic Ocean, which forms the county's eastern border | 489.39 | &&&&&&&&&0274534.&&&&&0274.534 | &&&&&&&&&&&&0561.&&&&&0561 sq mi (&&&&&&&&&&&01453.&&&&&01.453 km2) |  |
|  Wilayah Bergen | 003 | Hackensack | Hackensack 46,030 | 1683 | One of 4 original counties created in East Jersey | Bergen, New Netherland settlement | 3,868.02 | &&&&&&&&&0955732.&&&&&0955.732 | &&&&&&&&&&&&0234.&&&&&0234 sq mi (&&&&&&&&&&&&0606.&&&&&0606 km2) |  |
|  Wilayah Burlington | 005 | Mount Holly | Evesham Township 46,826 | 1694 | One of two original counties created in West Jersey | The old ancient name for an inland market near Bridlington, England | 557.43 | &&&&&&&&&0461860.&&&&&0461.860 | &&&&&&&&&&&&0805.&&&&&0805 sq mi (&&&&&&&&&&&02085.&&&&&02.085 km2) |  |
|  Wilayah Camden | 007 | Camden | Cherry Hill 74,553 | 1844 | Gloucester County | Charles Pratt, 1st Earl Camden (1714–1794), an English supporter of the colonists during the American Revolution | 2,313.77 | &&&&&&&&&0523485.&&&&&0523.485 | &&&&&&&&&&&&0222.&&&&&0222 sq mi (&&&&&&&&&&&&0575.&&&&&0575 km2) |  |
|  Wilayah Cape May | 009 | Cape May Court House | Lower Township 22,057 | 1692 | Burlington County | The 17th-century Dutch explorer Cornelius Jacobsen Mey, who explored and surveyed the Delaware Bay to the south of the county | 381.43 | &&&&&&&&&&095263.&&&&&095.263 | &&&&&&&&&&&&0255.&&&&&0255 sq mi (&&&&&&&&&&&&0660.&&&&&0660 km2) |  |
|  Wilayah Cumberland | 011 | Bridgeton | Vineland 60,780 | 1748 | Salem County | Prince William, Duke of Cumberland (1721–1765), second son of George II of Great Britain and military victor at the Battle of Culloden in 1746 | 320.85 | &&&&&&&&&0154152.&&&&&0154.152 | &&&&&&&&&&&&0489.&&&&&0489 sq mi (&&&&&&&&&&&01267.&&&&&01.267 km2) |  |
|  Wilayah Essex | 013 | Newark | Newark 311,549 | 1683 | One of four original counties created in East Jersey | The county of Essex in England | 6,221.98 | &&&&&&&&&0863728.&&&&&0863.728 | &&&&&&&&&&&&0126.&&&&&0126 sq mi (&&&&&&&&&&&&0326.&&&&&0326 km2) |  |
|  Wilayah Gloucester | 015 | Woodbury | Washington Township 48,677 | 1686 | Burlington County | The city of Gloucester, England | 938.80 | &&&&&&&&&0302294.&&&&&0302.294 | &&&&&&&&&&&&0325.&&&&&0325 sq mi (&&&&&&&&&&&&0842.&&&&&0842 km2) |  |
|  Wilayah Hudson | 017 | Jersey City | Jersey City 292,449 | 1840 | Bergen County | The English explorer Henry Hudson (d. 1611), who explored portions of New Jersey's coastline | 13,495.02 | &&&&&&&&&0724854.&&&&&0724.854 | &&&&&&&&&&&&&047.&&&&&047 sq mi (&&&&&&&&&&&&0122.&&&&&0122 km2) |  |
|  Wilayah Hunterdon | 019 | Flemington | Raritan Township 23,447 | 1714 | Burlington County | Robert Hunter (1664–1734), the Colonial Governor of New Jersey from 1710 to 1720 | 298.49 | &&&&&&&&&0128947.&&&&&0128.947 | &&&&&&&&&&&&0430.&&&&&0430 sq mi (&&&&&&&&&&&01114.&&&&&01.114 km2) |  |
|  Wilayah Mercer | 021 | Trenton | Hamilton Township 92,297 | 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 | 1,621.74 | &&&&&&&&&0387340.&&&&&0387.340 | &&&&&&&&&&&&0226.&&&&&0226 sq mi (&&&&&&&&&&&&0585.&&&&&0585 km2) |  |
|  Wilayah Middlesex | 023 | New Brunswick | Edison 107,588 | 1683 | One of four original counties created in East Jersey | The historic county of Middlesex in England | 2,604.05 | &&&&&&&&&0863162.&&&&&0863.162 | &&&&&&&&&&&&0311.&&&&&0311 sq mi (&&&&&&&&&&&&0805.&&&&&0805 km2) |  |
|  Wilayah Monmouth | 025 | Freehold Borough | Middletown Township 67,106 | 1683 | One of four original counties created in East Jersey | The historic county of Monmouthshire in Wales | 1,335.55 | &&&&&&&&&0643615.&&&&&0643.615 | &&&&&&&&&&&&0472.&&&&&0472 sq mi (&&&&&&&&&&&01222.&&&&&01.222 km2) |  |
|  Wilayah Morris | 027 | Morristown | Parsippany-Troy Hills 56,162 | 1739 | Hunterdon County | Colonel Lewis Morris (1671–1746), colonial governor of New Jersey at the time of the county's formation | 1,049.63 | &&&&&&&&&0509285.&&&&&0509.285 | &&&&&&&&&&&&0469.&&&&&0469 sq mi (&&&&&&&&&&&01215.&&&&&01.215 km2) |  |
|  Wilayah Ocean | 029 | Toms River | Lakewood Township 135,158 | 1850 | Monmouth County and Burlington County | The Atlantic Ocean, which forms the eastern border of New Jersey | 1,001.93 | &&&&&&&&&0637229.&&&&&0637.229 | &&&&&&&&&&&&0636.&&&&&0636 sq mi (&&&&&&&&&&&01647.&&&&&01.647 km2) |  |
|  Wilayah Passaic | 031 | Paterson | Paterson 159,732 | 1837 | Bergen County and Essex County | "Pasaeck", a Lenape word meaning "valley" | 2,709.33 | &&&&&&&&&0524118.&&&&&0524.118 | &&&&&&&&&&&&0185.&&&&&0185 sq mi (&&&&&&&&&&&&0479.&&&&&0479 km2) |  |
|  Wilayah Salem | 033 | Salem | Pennsville Township 12,684 | 1694 | One of two original counties created in West Jersey | A Hebrew word meaning "peace" | 195.51 | &&&&&&&&&&064837.&&&&&064.837 | &&&&&&&&&&&&0338.&&&&&0338 sq mi (&&&&&&&&&&&&0875.&&&&&0875 km2) |  |
|  Wilayah Somerset | 035 | Somerville | Franklin Township 68,364 | 1688 | Middlesex County | The county of Somerset in England | 1,060.47 | &&&&&&&&&0345361.&&&&&0345.361 | &&&&&&&&&&&&0305.&&&&&0305 sq mi (&&&&&&&&&&&&0790.&&&&&0790 km2) |  |
|  Wilayah Sussex | 037 | Newton | Vernon Township 22,358 | 1753 | Morris County | The county of Sussex in England | 286.5 | &&&&&&&&&0144221.&&&&&0144.221 | &&&&&&&&&&&&0521.&&&&&0521 sq mi (&&&&&&&&&&&01349.&&&&&01.349 km2) |  |
|  Wilayah Union | 039 | Elizabeth | Elizabeth 137,298 | 1857 | Essex County | The union of the United States, which was being threatened by the dispute over slavery | 5,208.73 | &&&&&&&&&0575345.&&&&&0575.345 | &&&&&&&&&&&&0103.&&&&&0103 sq mi (&&&&&&&&&&&&0267.&&&&&0267 km2) |  |
|  Wilayah Warren | 041 | Belvidere | Phillipsburg 15,249 | 1824 | Sussex County | The American Revolutionary War General Joseph Warren (1741–1775), killed at the Battle of Bunker Hill | 303.61 | &&&&&&&&&0109632.&&&&&0109.632 | &&&&&&&&&&&&0358.&&&&&0358 sq mi (&&&&&&&&&&&&0927.&&&&&0927 km2) |  |
Wilayah statistik metropolitan dan bagian-bagian wilayah New Jersey; kabupaten-kabupaten yang diberi warna biru tua terletak di metro New York City; yang diberi warna hijau tua terletak di metro Philadelphia. Perlu dicatat bahwa Kabupaten Mercer dan Kabupaten Warren terletak di Wilayah Metropolitan New York 'Raya' dan bahwa Kabupaten Atlantik, Cape May dan Cumberland berada di Wilayah Metropolitan Philadelphia 'Raya'