
New Jersey County Formation
|
County |
Formed |
History |
County Seat |
|
Atlantic County |
1837 |
Created from part of Gloucester County |
Mays Landing |
|
(in Hamilton Township) |
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|
Bergen County |
1675 |
One of four original counties created in |
Hackensack |
|
East Jersey |
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|
Burlington County |
1681 |
One of two original counties created in |
Mount Holly |
|
West Jersey |
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|
Camden County |
1844 |
Formed from part of Gloucester County |
Camden |
|
Cape May County |
1685 |
Created by West Jersey from part of |
Cape May Court House |
|
Burlington County |
(in Middle Township) |
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|
Cumberland County |
1748 |
Established from part of Salem County |
Bridgeton |
|
Essex County |
1675 |
One of four original counties created in |
Newark |
|
East Jersey |
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|
Gloucester County |
1686 |
Formed by West Jersey from part of |
Woodbury |
|
Burlington County |
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|
Hudson County |
1840 |
Created from part of Bergen County |
Jersey City |
|
Hunterdon County |
1714 |
Formed from part of Burlington County |
Flemington |
|
Mercer County |
1838 |
Formed from parts of Burlington County, |
Trenton |
|
Hunterdon County, Middlesex County, and |
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|
Somerset County |
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|
Middlesex County |
1675 |
One of four original counties created in |
New Brunswick |
|
East Jersey |
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|
Monmouth County |
1675 |
One of four original counties created in |
Freehold Borough |
|
East Jersey |
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|
Morris County |
1739 |
Created from part of Hunterdon County |
Morristown |
|
Ocean County |
1850 |
Established from part of Monmouth County |
Toms River |
|
(in Dover Township) |
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|
Passaic County |
1837 |
Created from parts of Bergen County and |
Paterson |
|
Essex County |
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|
Salem County |
1681 |
One of two original counties created in |
Salem |
|
West Jersey |
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|
Somerset County |
1688 |
Formed from part of Middlesex County |
Somerville |
|
Sussex County |
1753 |
Created from part of Morris County |
Newton |
|
Union County |
1857 |
Established from part of Essex County |
Elizabeth |
|
Warren County |
1824 |
Formed from part of Sussex County |
Belvidere |