COUNTY
|
DATE
FORMED
|
COUNTY
SEAT
|
HISTORICAL
DATA
|
Atlantic
|
1837
|
Mays
Landing
|
Formed
from Gloucester County.
|
Bergen
|
1683
|
Hackensack
|
Original
county in East Jersey; Passaic County set off, 1837;
Hudson County set off, 1840.
|
Burlington
|
1681
|
Mount
Holly
|
Original
county in West Jersey--court established 1681; boundary
set with Gloucester County, 1692; Hunterdon County set
off, 1714; part of Mercer County formed from Burlington,
1838.
|
Camden
|
1844
|
Camden
|
Formed
from Gloucester County.
|
Cape
May
|
1685
|
Cape
May
Court House
|
Original
county in West Jersey--court established 1685; boundaries
set 1692
|
Cumberland
|
1748
|
Bridgeton
|
Formed
from Salem County.
|
Essex
|
1683
|
Newark
|
Original
county in East Jersey; part of Passaic County formed
from Essex, 1837; Union County set off, 1857.
|
Gloucester
|
1686
|
Woodbury
|
Original
county in West Jersey--court established 1686; boundary
set with Burlington County, 1692; Atlantic County set
off, 1837; Camden County set off, 1844.
|
Hudson
|
1840
|
Jersey
City
|
Formed
from Bergen County.
|
Hunterdon
|
1714
|
Flemington
|
Formed
from Burlington County; Morris County set off, 1739;
part of Mercer County formed from Hunterdon, 1838.
|
Mercer
|
1838
|
Trenton
|
Formed
from Burlington, Hunterdon, Middlesex and Somerset Counties.
|
Middlesex
|
1683
|
New
Brunswick
|
Original
county in East Jersey; Somerset County set off, 1688;
part of Mercer County formed from Middlesex, 1838.
|
Monmouth
|
1683
|
Freehold
|
Original
county in East Jersey; Ocean County set off, 1850.
|
Morris
|
1739
|
Morristown
|
Formed
from Hunterdon County; Sussex County set off, 1753.
|
Ocean
|
1850
|
Toms
River
|
Formed
from Monmouth County.
|
Passaic
|
1837
|
Paterson
|
Formed
from Bergen and Essex Counties.
|
Salem
|
1681
|
Salem
|
Original
county in West Jersey--court established 1681; formed
from Salem Tenth, 1694; Cumberland set off, 1748.
|
Somerset
|
1688
|
Somerville
|
Formed
from Middlesex County.
|
Sussex
|
1753
|
Newton
|
Formed
from Morris County; Warren County set off, 1824.
|
Union
|
1857
|
Elizabeth
|
Formed
from Essex County.
|
Warren
|
1824
|
Belvidere
|
Formed
from Sussex County.
|