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Central Jersey
Highlighted in green: Middlesex, Monmouth, Mercer, Somerset,Hunterdon, Union, and Ocean counties
Highlighted in green: Middlesex, Monmouth, Mercer, Somerset,
Hunterdon, Union, and Ocean counties
Country United States
State New Jersey
Largest municipalities by population Elizabeth

Old Bridge
New Brunswick
Perth Amboy

Central Jersey is a central region of the U.S. state of New Jersey. The designation of Central New Jersey with a distinct toponym is a colloquial one rather than an administrative one.

Geographic area and descriptions

There are varying descriptions as to what composes Central Jersey. North Jersey and South Jersey have been used to describe the northern and southern halves of New Jersey, in the United States. While there is agreement that their border is somewhere in the middle third of the state, there is no official delineation.

All descriptions of Central Jersey include Middlesex County, the center of population of New Jersey, and tend to include the region radiating from New Brunswick in Middlesex County and comprising much of Monmouth, Mercer, and Somerset counties. Inclusion of adjacent areas of Hunterdon, Union, and Ocean counties is subjective and a source of debate. The intersection of the two busiest highways in New Jersey, namely the New Jersey Turnpike and the Garden State Parkway, is located in Woodbridge, Middlesex County.

Trenton, the seat of Mercer County, is the state capital of New Jersey. New Jersey's geographic center is located in Hamilton Township, Mercer County. In 2011, the population center of the state was alongside Nenninger Lane in the western portion of East Brunswick Township, which is also known as the "Heart of Middlesex County". There are other related, overlapping areas that include counties in the midsection of the state.

While the region is considered part of the larger New York metropolitan area in its greatest extent, Mercer County constitutes a separate Metropolitan Statistical Area. The Metropolitan Statistical Areas of New Jersey further subdivides the middle third of the state into smaller groups of counties. Many people from Southern New Jersey though do not recognize Central Jersey and will just call it North and South Jersey.

The New Jersey Department of Tourism places Middlesex and Union in the Gateway Region and Mercer in the Delaware Valley. Monmouth and Ocean counties are considered part of the Jersey Shore, while Somerset and Hunterdon counties are part of Skylands Region.

The Raritan Valley is the region along the middle reaches of the Raritan River and its North Branch and South Branch. The Raritan Valley includes the communities of Branchburg, Bridgewater, Somerville, Raritan, Hillsborough, Franklin, Green Brook, North Plainfield, Bound Brook, and South Bound Brook, all in Somerset County; Piscataway, South Plainfield, New Brunswick, Highland Park, Edison, Middlesex, Dunellen, and Metuchen, all in the northern and central portions of Middlesex County; and Plainfield in southwestern Union County.

The Raritan Bayshore is used to describe the region in Monmouth County along the coast of the Raritan Bay from South Amboy to Sandy Hook.

Kingston is the only tri-county community in New Jersey.

The telephone area codes 732 and 848 includes Middlesex, Somerset, and Union, Monmouth and northern Ocean counties.

BAPS Robbinsville Mandir - Exterior
Swaminarayan Akshardham (Devnagari: स्वामिनारायण अक्षरधाम) in Robbinsville, Mercer County, inaugurated in 2014 as the world's largest Hindu temple.

Central New Jersey, particularly Edison and surrounding Middlesex County, is prominently known for its significant concentration of Asian Indians; the growing Little India neighborhoods running along Oak Tree Road in Edison and neighboring Woodbridge Township encompass several hundred Indian-run businesses. The world's largest Hindu temple was inaugurated in Robbinsville in 2014, a BAPS temple. Edison is also home to a growing Chinatown, running along New Jersey Route 27.

At least two counties in Central Jersey carry official nicknames: Mercer County is known as "The Capital County", while Middlesex County carries the nickname, "The Greatest County in the Land".

Colonial era

Wpdms east west new jersey
Between 1674 and 1702 New Jersey was divided into East and West

Between 1674 and 1702, in the early part of New Jersey's colonial period, the border between West Jersey and East Jersey ran diagonally across the middle part of the state. The Keith Line, as the demarcation is known, ran through the center of what is now Mercer County. This border remained important in determining ownership and political boundaries until 1745. Remnants of that division are seen today, notably as the Hunterdon-Somerset, Ocean-Burlington, and Monmouth-Burlington county lines. The division of the two provinces was cultural as well as geographical.

New Jersey's position between the major cities of New York and Philadelphia led Benjamin Franklin to call the state "a barrel tapped at both ends". Travel between the two cities originally included a ferry crossing. Due to the obstacles created by the Meadowlands and the Hudson Palisades passengers from New York would cross the North River (Hudson River) and the Upper New York Bay by boat and then transfer to stagecoaches to travel overland through what is now Central Jersey. One route from Elizabethtown to Lambertville was known as Old York Road. Another route, from Perth Amboy through Kingston to Burlington ran along a portion of the Kings Highway, These roads followed Lenape paths known respectively as the Naritcong Trail and the Assunpink Trail.

Raritan Landing, across from New Brunswick in today's Piscataway became was important inland port and commercial hub for the region. Two of the nine Colonial Colleges, founded before the American Revolution, were the College of New Jersey (now Princeton University), and Queens College, (now Rutgers University).


I-195 (NJ) map
Interstate 195 is called the Central Jersey Expressway.

The New Jersey Department of Transportation (NJDOT) operates three divisions in the state: North, South, and Central, which encompasses Hunterdon, Mercer, Middlesex, Monmouth, Ocean, and Somerset counties and portions of Warren County. (Routes 22, 122, 173, 78 and including south of Route 57). Apart from Mercer County, which comes under the auspices of the Delaware Valley Regional Planning Commission, all counties in the region are part of the North Jersey Transportation Planning Authority, a government partner which approves transportation projects for the state.

The United New Jersey Railroad and Canal Company traversed the region in 1830, eventually becoming the Pennsylvania Railroad (PRR). NJT's Northeast Corridor Line and the North Jersey Coast were once part of the PRR, as was Amtrak which serves the commuter hub at Metropark, New Brunswick, and the Trenton Transit Center. The Central Railroad of New Jersey once connected Jersey City (with connecting ferries to Manhattan) and many Central Jersey towns. Much of that system is now included in New Jersey Transit rail operations to the Raritan Valley. New Brunswick is known as the Hub City, and at one time was a regional transportation hub for streetcars which converged in the city. The Monmouth Ocean Middlesex Line has been proposed for the region.

The Garden State Parkway, New Jersey Turnpike (Interstate 95), Interstate 287, U.S. Route 1, U.S. Route 9, New Jersey Route 18, and New Jersey Route 35 are major automobile routes through Central Jersey that pass over the Raritan River at Perth Amboy and New Brunswick. Interstate 195 travels through Central Jersey (hence the name "Central Jersey Expressway") from the Trenton area towards Belmar.

From the Raritan Bayshore, SeaStreak catamarans travel to Pier 11 at Wall Street and East 34th Street Ferry Landing. NY Waterway ferries travel to Paulus Hook Ferry Terminal in Jersey City, Battery Park City Ferry Terminal, and West Midtown Ferry Terminal. As of 2018, there are plans to create ferry service from Carteret in Middlesex County.

Trenton-Mercer Airport is the only airport in Central New Jersey providing long-distance commercial service. Monmouth Executive Airport, formerly known as Allaire Airport, is a public-use airport located near Allaire State Park. Central Jersey Regional Airport is a privately owned, public airport in Somerset County. Linden Airport is a small general aviation airport located along U.S. Route 1&9 in Union County.

The Route 9 BBS, the New Brunswick BRT, and the Central Jersey Route 1 Corridor are projects in the region intended to expand the use of bus rapid transit in New Jersey.

Notable Central Jerseyans

  • People from Hunterdon County
  • People from Mercer County
  • People from Middlesex County
  • People from Monmouth County
  • People from Ocean County
  • People from Somerset County
  • People from Union County


AT&T Homdel and water tower
Bell Labs water tower in Holmdel was designed to resemble a transistor, an important invention. Telecommunications remains an important industry in this region.

All of the region's counties are ranked among the highest income counties in the United States, as measured by median household income. It has been called the state's "wealth belt".


For decades, Central Jersey was a hub for manufacturing in the eastern United States. Many industrial companies had major production facilities in and around the area, including Edison Assembly, Ford Motor Company's production plant for Rangers, Mustangs, Pintos, Mercurys, and Lincolns. Other notable companies include General Motors in Linden, Frigidaire's air-conditioner plant in Edison, Hess Corporation in Woodbridge, Siemens in Edison, and ExxonMobil Chemical.

Starting in the 2000s, manufacturing began to leave Central Jersey, and many facilities had closed and moved overseas.

Telecommunications and high technology

The Bell Labs Holmdel Complex has been the site of many innovations in telecommunications and is experiencing a renaissance as a business incubator for high-tech startup companies. Today Verizon Wireless, AT&T Communications, Vonage, Avaya, and Bell Labs are located in the region.

Healthcare and pharmaceuticals

Freehold Raceway Mall Center Court
Freehold Raceway Mall in Freehold, with a gross leasable area of 1,389,000 square feet (129,000 m2), is the largest mall in Central Jersey, and the third largest in the state.

New Brunswick is known as "the Healthcare City", due to the concentration of medical facilities in Central Jersey, including Robert Wood Johnson University Hospital and Saint Peter's University Hospital, as well as the University of Medicine and Dentistry of New Jersey (UMDNJ)-Robert Wood Johnson Medical School. University Medical Center of Princeton is located in Plainsboro. The campuses of the major pharmaceutical corporations Bristol-Myers Squibb Company, Johnson & Johnson, Merck and Sanofi-Aventis are located in the region, as are major operations of Dr. Reddy's Laboratories and Aurobindo Pharma. Princeton University's Frist Campus Center is used for the aerial views of Princeton‑Plainsboro Teaching Hospital seen in the television series House.

Shopping malls

Cannon Green and Nassau Hall, Princeton University
Nassau Hall, the oldest building at Princeton University in Princeton, was the largest academic building in the American colonies when it was built in 1756 and it briefly served as the United States Capitol building in 1783.

Major shopping centers include the Freehold Raceway Mall, Woodbridge Center, Menlo Park Mall, Bridgewater Commons, Monmouth Mall, Brunswick Square Mall, Quaker Bridge Mall, Princeton Market Fair, Ocean County Mall, Jackson Premium Outlets, and Jersey Shore Premium Outlets.


Rutgers-New Brunswick, Monmouth University, Princeton University, Princeton Theological Seminary, Rider University, New Brunswick Theological Seminary, and The College of New Jersey are located in Central Jersey. Each county maintains its own county college, with the exception of Hunterdon County - whose residents may attend either Raritan Valley Community College (located in Somerset County) or Mercer County Community College (located in Mercer County) at no additional cost. Monmouth County's residents have the choice of attending Brookdale Community College which was recently listed as one of the top three community colleges in the state. Thomas Edison State College in Trenton provides extensive on-line and adult education. Kean University is in Union County.

Tourism and cultural attractions

Downtown New Brunswick is an educational and cultural hub undergoing rapid gentrification.

Popular tourist attractions in Central New Jersey include Six Flags Great Adventure, Gateway National Recreation Area, Monmouth Park Racetrack, Freehold Raceway, and the many boardwalks along the northern Jersey Shore, in Monmouth County and northern Ocean County.

The New Brunswick music scene has produced many successful indie bands. The city also is home to the New Jersey Folk Festival. In an early era, the Stone Pony and Asbury Park Convention Hall were important venues on the rock scene. Major music and theater venues in the region include PNC Bank Arts Center, the Trenton War Memorial, CURE Insurance Arena, the McCarter Theater, the Count Basie Theater, the George Street Playhouse and the Starland Ballroom.

East Jersey Olde Towne Village, the Road Up Raritan Historic District as well as those in Trenton, Lawrence, and Princeton recall the colonial era. The region saw a lot of action during the American Revolution due to the region's strategic importance between Philadelphia and New York City. As such, many important battles took place here. These battle sites have been converted into state parks, offering historic preservation of the important structures contingent to their respected battles. State parks include Washington Crossing State Park, Princeton Battlefield State Park, and Monmouth Battlefield State Park. Ocean Grove is one of the largest national historic sites in the United States.

Media markets and national sports

Depending on the location, different parts of Central Jersey fall into overlapping spheres of influence from New York media market and Philadelphia media market. Portions of Mercer, Monmouth, Ocean, and Middlesex counties are located within both the New York City and the Philadelphia television markets, while the rest of the region belongs wholly to the New York market.

While the Star-Ledger has the largest circulation of all newspapers in New Jersey, four regional newspapers — Asbury Park Press, Home News Tribune and two Trenton dailies, The Trentonian, and The Times — and several local papers are published in Central Jersey. New Jersey On-Line, and are web based news services. During statewide political events like Gubernatorial or Senatorial election debates often held in Trenton, partner stations from both the New York and Philadelphia markets pool resources together to co-host the events and bring them to New Jersey homes.

Identification with sports teams is also affected by the region's location, and it is not uncommon to find fans of major sports teams of either city. For example, while residents of northern New Jersey root for New York teams, those in the southern part of the state root for Philadelphia teams. The distinction is less clear in Central Jersey. Central Jersey Riptide was a short-lived professional soccer club.

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