Central Jersey in the context of "Somerville, New Jersey"

The New York metropolitan area, also called the Tri-State area and sometimes referred to as Greater New York or Metro New York, is the largest metropolitan economy in the world, with a gross metropolitan product of over US$2.6 trillion. It is also the largest metropolitan area in the world by urban landmass, encompassing 4,669.0 sq mi (12,093 km). Among the most populous metro areas in the world, New York is the largest metropolitan statistical area in the United States and the only one with more than 20 million residents, according to the 2020 U.S. Census.

The core of this vast area, the New York metropolitan statistical area, includes New York City and much of Downstate New York (Long Island as well as the mid- and lower Hudson Valley), northern and central New Jersey (including that state's eleven largest municipalities), and Southwestern Connecticut. The phrase Tri-State area is used to refer to the larger urbanized area of Downstate New York, northern New Jersey, and western Connecticut. The urban region's combined statistical area, the New York–Newark, NY–NJ–CT–PA combined statistical area, spans four states.

The Jersey Shore, commonly called the Shore by locals, is the coastal region of the U.S. state of New Jersey. The term encompasses about 141 miles (227 km) of oceanfront bordering the Atlantic Ocean, from Perth Amboy in the north to Cape May Point in the south. The region includes Middlesex, Monmouth, Ocean, Atlantic, and Cape May counties, which are in the central and southern parts of the state. Located in the center of the Northeast Megalopolis, the northern half of the shore region is part of the New York metro area, while the southern half of the shore region is part of the Philadelphia metro area. The Jersey Shore hosts the highest concentration of oceanside boardwalks in the United States.

Famous for its wide beaches, and many boardwalks featuring arcades, amusement parks, and water parks, the Jersey Shore is a popular vacation spot for residents of North Jersey, New York, Maryland, Delaware, Connecticut, and Pennsylvania. Certain shore communities are also popular with visitors from the Canadian province of Quebec. Due to New Jersey's peninsular geography, both sunrise and sunset are visible over water from different points on the Jersey Shore.

South Jersey, also known as Southern New Jersey, comprises the southern portion of the U.S. state of New Jersey. It is located between Pennsylvania and the lower Delaware River to its west, the Atlantic Ocean to its east, Delaware to its south, and Central Jersey or North Jersey to its north, depending on the definition of North Jersey.

South Jersey is part of the Philadelphia metropolitan area, or Delaware Valley, the seventh-largest metropolitan region in the nation with 6.288 million residents in the core metropolitan statistical area and 7.366 million residents in the combined statistical area of Camden, Philadelphia and Wilmington, as of 2020. South Jersey is known for containing the unique ecoregion known as the Pine Barrens, which remains largely undisturbed despite its location within the Northeastern megalopolis. The South Jersey Pine Barrens are the largest remaining example of the Atlantic coastal pine barrens ecosystem.

Perth Amboy is a city in northeastern Middlesex County, in the U.S. state of New Jersey, within the New York metropolitan area. As of the 2020 United States census, Perth Amboy was Central Jersey's 10th most populous municipality of any kind, with a population of 55,436. Perth Amboy is known as the "City by the Bay", referring to its location adjoining Raritan Bay.

The earliest residents of the area were the Lenape Native Americans, who called the point on which the city lies "Ompoge". Perth Amboy was settled in 1683 by Scottish colonists and was called "New Perth" after James Drummond, 4th Earl of Perth; the native name was eventually corrupted and the two names were merged. Perth Amboy was formed by Royal charter in 1718, and the New Jersey Legislature reaffirmed its status in 1784, after independence. The city was a capital of the Province of New Jersey from 1686 to 1776. During the mid-1800s, the Industrial Revolution and immigration grew the city, developing a variety of neighborhoods which residents from a diverse range of ethnicities lived in. The city developed into a resort town for the Raritan Bayshore near it, but the city has grown in other industries since its redevelopment starting in the 1990s. Its residents are mostly Hispanic.

Middlesex County is a county located in the north-central part of the U.S. state of New Jersey, extending inland from the Raritan Valley region to the northern portion of the Jersey Shore. As of the 2020 United States census, the county was the state's third-most populous county with a population of 863,162, its highest decennial count ever and an increase of 53,304 (+6.6%) from the 2010 census count of 809,858, which in turn reflected an increase of 59,696 (8.0%) from the 750,162 counted in the 2000 census. Middlesex is part of the New York metropolitan area. Many communities within the county serve as commuter towns to and from New York City and other points north. The county is part of the Central Jersey region of the state.

The county is located in the middle of the Northeast megalopolis of the U.S. Its county seat is the city of New Brunswick, a center for the sciences, arts, and cultural activities, and the headquarters of the state's flagship academic institution, Rutgers University. The county's most populous place, with 107,588 residents as of the 2020 census, is Edison, while Monroe Township covers the largest area of any municipality, at 42.19 square miles (109.3 km). Since the 2010 census, the state's center of population is in East Brunswick; the center of population for New Jersey has been in Middlesex County since the 1900 census. Middlesex County hosts an extensive transportation network, including several rail stations along the heavily traveled Northeast Corridor Line of the New Jersey Transit commuter rail system, as well as the intersection of the New Jersey Turnpike and the Garden State Parkway, the state's two busiest motor vehicle roadways, in Woodbridge Township. Middlesex County calls itself The Greatest County in the Land.

Monmouth County (/ˈmɒnməθ/) is a county located in the central portion of the U.S. state of New Jersey. It is bordered to its west by Mercer and Middlesex Counties, to its south by Ocean County, to its east by the Atlantic Ocean, and to its north by the Raritan Bay (sharing a border with the boroughs of Staten Island, Brooklyn, and Queens in New York City, across it). Monmouth County's geographic area comprises 30% water. The county is part of the Jersey Shore region of the state.

As of the 2020 United States census, the county was the state's fifth-most-populous county with a population of 643,615, its highest decennial count ever and an increase of 13,235 (+2.1%) from the 2010 census count of 630,380, which in turn reflected an increase of 15,079 from 615,301 at the 2000 census. As of 2010, the county fell to the fifth-most populous county in the state, having been surpassed by Hudson County. Monmouth's county seat is Freehold Borough, though many county offices are also located in neighboring Freehold Township. The most populous place was Middletown Township, with 67,106 residents at the time of the 2020 Census, while Howell Township covered 61.21 square miles (158.5 km), the largest total area of any municipality.

Ocean County is a county in the central part of the U.S. state of New Jersey, and the southernmost county in the New York metropolitan area. The county borders the Atlantic Ocean on the east and in terms of total area is the state's largest county. Its county seat is Toms River. The county is part of the Jersey Shore region of the state.

Since 2020, Ocean County has been the fastest-growing county in New Jersey, with a population of 637,229 recorded at the 2020 United States census, its highest decennial count ever and ranking the county as the state's sixth-most populous county, with an increase of 60,662 (+10.5%) from the 576,567 enumerated at the 2010 census, which in turn reflected an increase of 65,651 (+12.8%) from the 510,916 counted in the 2000 census. Since 2010, Ocean County's population has been growing faster than the United States as a whole. The United States Census Bureau's Population Estimates Program estimated a 2023 population of 659,197, an increase of 21,968 (+3.4%) from the 2020 decennial census. Ocean County’s most populous and fastest-growing place is Lakewood Township, with an estimated 139,866 residents as of 2023, while Jackson Township covers 100.62 square miles (260.6 km), the largest total area of any municipality in the county.

Trenton is the capital city of the U.S. state of New Jersey and the county seat of Mercer County. It was the capital of the United States from November 1 until December 24, 1784. Trenton and Princeton are the two principal cities of the Trenton–Princeton metropolitan statistical area, which encompasses all of Mercer County and constitutes part of the New York combined statistical area by the U.S. Census Bureau However, Trenton is part of the Philadelphia media market and directly borders the Philadelphia metropolitan area to its west, and the city was part of the Philadelphia combined statistical area from 1990 until 2000.

In the 2020 United States census, Trenton was the fifth largest city in Central Jersey and the 10th-most-populous municipality statewide, with a population of 90,871, an increase of 5,958 (+7.0%) from the 2010 census count of 84,913, which in turn had reflected a decline of 490 (−0.6%) from the 85,403 counted in the 2000 census. The Census Bureau's Population Estimates Program calculated that the city's population was 89,661 in 2022, ranking the city the 382nd-most-populous in the country. Trenton is the only city in New Jersey that is served by three commuter rail transit systems (Amtrak, NJ Transit, and SEPTA), and the city has encouraged a spate of transit-oriented development.