Middlesex County is located in the north-central part of New Jersey, United States, 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.
Highland Park is a borough in Middlesex County, in the U.S. state of New Jersey, in the New York City metropolitan area. The borough is located on the northern banks of the Raritan River, in the Raritan Valley region. As of the 2020 United States census, the borough's population was 15,072, an increase of 1,090 (+7.8%) from the 2010 census count of 13,982, which in turn reflected a decline of 17 (−0.1%) from the 13,999 counted in the 2000 census.
Metuchen is a suburban borough in Middlesex County in the U.S. state of New Jersey. The borough is a commuter town of New York City, located in the heart of the Raritan Valley region within the New York Metropolitan area. The borough, along with Edison, is a regional commercial hub for Central New Jersey. The borough is 6 miles (9.7 km) northeast of New Brunswick, 17 miles (27 km) southwest of Newark, 20 miles (32 km) southwest of Jersey City, and 22 miles (35 km) southwest of Manhattan. As of the 2020 United States census, the borough's population was 15,049, an increase of 1,475 (+10.9%) from the 2010 census count of 13,574, which in turn reflected an increase of 734 (+5.7%) from the 12,840 counted in the 2000 census.
Monroe Township is a township located in southern Middlesex County, in the U.S. state of New Jersey. The township is centrally located within the Raritan Valley region and is an outer-ring suburb of New York City within the New York metropolitan area. As of the 2020 United States census, the township's population was 48,594, its highest decennial count ever and an increase of 9,462 (+24.2%) from the 39,132 recorded at the 2010 census, which in turn had reflected an increase of 11,133 (+39.8%) from the 27,999 counted at the 2000 census. Monroe Township also comprises the largest land area of any municipality in Middlesex County, at approximately 42 square miles (110 km2).
Old Bridge Township is a township in Middlesex County, in the U.S. state of New Jersey, located in the Raritan Valley region and within the New York metropolitan area. As of the 2020 United States census, the township was the state's 21st-most-populous municipality, with a population of 66,876, an increase of 1,501 (+2.3%) from the 2010 census count of 65,375, which in turn reflected an increase of 4,919 (+8.1%) from the 60,456 counted in the 2000 census. As of the 2010 Census, the township was ranked 18th in the state by population, after being the state's 21st most-populous municipality in 2000. Old Bridge is a bedroom suburb of New York City located across the Raritan Bay from Staten Island, and it is about 25 miles (40 km) from Manhattan, and about 30 miles (48 km) south of Newark.
Piscataway is a township in Middlesex County, in the U.S. state of New Jersey. It is a suburb of the New York metropolitan area, in the Raritan Valley. As of the 2020 United States census, the township's population was 60,804, an increase of 4,760 (+8.5%) from the 2010 census count of 56,044, which in turn reflected an increase of 5,562 (+11.0%) from 50,482 at the 2000 census.
Plainsboro Township is a township situated in southern Middlesex County, within the U.S. state of New Jersey. Centrally located in the Raritan Valley region, the township is an outer-ring suburb of New York City in the New York metropolitan area, even though it is slightly geographically closer to Center City, Philadelphia than to Midtown Manhattan. As of the 2020 United States census, the township's population was 24,084, its highest decennial count ever and an increase of 1,085 (+4.7%) from the 22,999 recorded at the 2010 census, which in turn had reflected an increase of 2,784 (+13.8%) from the 20,215 counted at the 2000 census.
Sayreville is a borough in Middlesex County, in the U.S. state of New Jersey. Sayreville is within the heart of the Raritan Valley region, located on the south banks of the Raritan River, and also located on the Raritan Bay. As of the 2020 United States census, the borough's population was 45,345, an increase of 2,641 (+6.2%) from the 2010 census count of 42,704, which in turn reflected an increase of 2,327 (+5.8%) from the 40,377 counted in the 2000 census.
Aberdeen Township is a township situated on the Jersey Shore in Monmouth County, in the U.S. state of New Jersey. The township is located within the Raritan Valley region and is a part of the New York Metropolitan Area, bordering both Old Bridge Township, New Jersey, in adjacent Middlesex County, New Jersey, as well as Staten Island in New York City. As of the 2020 United States census, the township's population was 19,329, its highest decennial count ever and an increase of 1,119 (+6.1%) from the 2010 census count of 18,210, which had in turn reflected an increase of 756 (+4.3%) from the 17,454 recorded at the 2000 census.
Pequannock Township is a township in Morris County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 15,571, an increase of 31 (+0.2%) from the 2010 census count of 15,540, which in turn reflected an increase of 1,652 (+11.9%) from the 13,888 counted in the 2000 census. The primary community in the township is the census-designated place of Pompton Plains.
North Brunswick is a township in Middlesex County, in the U.S. state of New Jersey. It is centrally located in the Raritan Valley region within the New York metropolitan area. As of the 2020 United States census, the township's population was 43,905, an increase of 3,163 (+7.8%) from the 2010 census count of 40,742, which in turn reflected an increase of 3,455 (+12.3%) from the 36,287 counted in the 2000 census.
Lenapehoking is widely translated as 'homelands of the Lenape', which in the 16th and 17th centuries, ranged along the Eastern seaboard from western Connecticut to Delaware, and encompassed the territory adjacent to the Delaware and lower Hudson river valleys, and the territory between them.
Cheesequake State Park is a 1,610-acre (2.52 sq mi) state park located in Old Bridge, Middlesex County, New Jersey, in the United States.
Central Jersey, or Central New Jersey, is the middle region of the U.S. state of New Jersey. The designation Central Jersey is a distinct administrative toponym. While the State of New Jersey is often divided into North Jersey and South Jersey, many residents recognize Central Jersey as a distinct entity.
Squankum is an unincorporated community located within Howell Township in Monmouth County, in the U.S. state of New Jersey. The name Squankum was used for a town in Gloucester County, which was changed to present day Williamstown, due to postal regulations that prohibited the two towns from having the same name.
Middlesex Downs is an unincorporated community located within Monroe Township in Middlesex County, in the U.S. state of New Jersey. The wholly residential settlement contains small homes along Dey Grove Road and Bergen Mills Road with larger homes in developments towards the south. The township-owned James Monroe Memorial Park is also located in this settlement. Much of the area to the north of Dey Grove Road consists of forest land but at one time this was planned to become a large planned community arranged in a street grid. The small property parcels and paper streets remain on township tax maps today.
Morgan is a neighborhood in Sayreville in Middlesex County, in the U.S. state of New Jersey, named for Charles Morgan III who purchased the land on May 7, 1710.
Freewood Acres is an unincorporated community located within Howell Township in Monmouth County, in the U.S. state of New Jersey. The area is made up of mostly single-story homes arranged along a street grid in the northern reaches of the Pine Barrens. U.S. Route 9 runs through the center of the community just north of its interchange with Interstate 195. The Land O'Pines Elementary School and Manasquan Reservoir County Park exist to the east of the community. It became the center of the Kalmyk American community in the latter part of the 20th century.
United States 
New Jersey 
