County Seat -- Mays Landing
County Class -- Five (5)
Form of Government -- County Executive Plan
Freeholder Board -- Nine (9) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 23
Land Area -- 566.97 square miles

Bergen County, New Jersey
A Charter County

County Seat -- Hackensack
County Class -- One (1)
Form of Government -- County Executive Plan
Freeholder Board -- Seven (7) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 70
Land Area -- 234.57 square miles

Burlington County New Jersey

County Seat -- Mt. Holly
County Class -- Two (2)
Form of Government -- Freeholder Board
Freeholder Board -- Five (5) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 40
Land Area -- 817.64 square miles

Camden County New Jersey

County Seat -- Camden
County Class -- Two (2)
Form of Government -- Freeholder Board
Freeholder Board -- Seven (7) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 37
Land Area -- 222.01 square miles

Cape May County New Jersey

County Seat -- Cape May Court House
County Class -- Six (6)
Form of Government -- Freeholder Board
Freeholder Board -- Five (5) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 16
Land Area -- 263.37 square miles

Cumberland County New Jersey

County Seat -- Bridgeton
County Class -- Three (3)
Form of Government -- Freeholder Board
Freeholder Board -- Seven (7) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 14
Land Area -- 501.73 square miles

Essex County New Jersey
A Charter County

County Seat -- Newark
County Class -- One (1)
Form of Government -- County Executive Plan
Freeholder Board -- Nine (9) members
Constitutional Officers -- County Clerk, Sheriff, Register, and Surrogate
Number of Constituent Municipalities -- 22
Land Area -- 127.44 square miles

Gloucester County New Jersey

County Seat -- Woodbury
County Class -- Three (3)
Form of Government -- Freeholder Board
Freeholder Board -- Seven (7) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 24
Land Area -- 328.36 square miles

Hudson County New Jersey
A Charter County

County Seat -- Jersey City
County Class -- One (1)
Form of Government -- County Executive Plan
Freeholder Board -- Nine (9) members
Constitutional Officers -- County Clerk, Sheriff, Register, and Surrogate
Number of Constituent Municipalities -- 12
Land Area -- 46.42 square miles

Hunterdon County New Jersey

County Seat -- Flemington Borough
County Class -- Three (3)
Form of Government -- Freeholder Board
Freeholder Board -- Three (3) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 26
Land Area -- 429.60 square miles

Mercer County New Jersey
A Charter County

County Seat -- Trenton
County Class -- Two (2)
Form of Government -- County Executive Plan
Freeholder Board -- Seven (7) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 13
Land Area -- 226.00 square miles

Middlesex County New Jersey

County Seat -- New Brunswick
County Class -- Two (2)
Form of Government -- Freeholder Board
Freeholder Board -- Seven (7) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 25
Land Area -- 317.90 square miles

Monmouth County New Jersey

County Seat -- Freehold Borough
County Class -- Five (5)
Form of Government -- Freeholder Board
Freeholder Board -- Five (5) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 53
Land Area -- 471.57 square miles

Morris County New Jersey

County Seat -- Morristown
County Class -- Two (2)
Form of Government -- Freeholder Board
Freeholder Board -- Seven (7) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 39
Land Area -- 470.24 square miles

Ocean County New Jersey

County Seat -- Toms River
County Class -- Five (5)
Form of Government -- Freeholder Board
Freeholder Board -- Five (5) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 33
Land Area -- 637.09 square miles

Passaic County New Jersey

County Seat -- Paterson
County Class -- Two (2)
Form of Government -- Freeholder Board
Freeholder Board -- Seven (7) members
Constitutional Officers -- County Clerk, Sheriff, Register, and Surrogate
Number of Constituent Municipalities -- 16
Land Area -- 192.01 square miles

Salem County New Jersey

County Seat -- Salem
County Class -- Three (3)
Form of Government -- Freeholder Board
Freeholder Board -- Seven (7) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 15
Land Area -- 346.56 square miles

Somerset County New Jersey

County Seat -- Somerville
County Class -- Two (2)
Form of Government -- Freeholder Board
Freeholder Board -- Five (5) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 21
Land Area -- 305.55 square miles

Sussex County New Jersey

County Seat -- Newton
County Class -- Three (3)
Form of Government -- Freeholder Board
Freeholder Board -- Five (5) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 24
Land Area -- 526.09 square miles

Union County New Jersey
A Charter County

County Seat -- Elizabeth
County Class -- Two (2)
Form of Government -- County Manager Plan
Freeholder Board -- Nine (9) members
Constitutional Officers -- County Clerk, Sheriff, Register, and Surrogate
Number of Constituent Municipalities -- 21
Land Area -- 102.93 square miles

Warren County New Jersey

County Seat -- Belvidere
County Class -- Three (3)
Form of Government -- Freeholder Board
Freeholder Board -- Three (3) members
Constitutional Officers -- County Clerk, Sheriff, and Surrogate
Number of Constituent Municipalities -- 22
Land Area -- 364.55 square miles