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.
Princeton Junction is an unincorporated community and census-designated place (CDP) located within West Windsor township, Mercer County, in the U.S. state of New Jersey. As of the 2020 census, the CDP's population was 2,475.
Colonia is an unincorporated community and census-designated place (CDP) in Woodbridge Township, Middlesex County, New Jersey, United States. As of the 2020 United States census, the CDP's population was 18,609.
Cranbury is an unincorporated community and census-designated place (CDP) in Cranbury Township, Middlesex County, New Jersey, in the United States. As of the 2020 United States census, the CDP's population was 2,200. Unlike in some other New Jersey townships, the Cranbury CDP is only part of Cranbury Township.
Dayton is an unincorporated community and census-designated place (CDP) in South Brunswick Township, Middlesex County, New Jersey, in the United States. At the 2020 United States census, the CDP's population was 8,138, up from 7,063 in 2010.
Kendall Park is an unincorporated community and census-designated place (CDP) located within South Brunswick Township, in Middlesex County, in the U.S. state of New Jersey. As of the 2010 United States Census, the CDP's population was 9,339. Kendall Park has a post office with its own ZIP Code (08824) that encompasses the entire CDP, as well as some surrounding areas.
Milltown is a borough in Middlesex County, in the U.S. state of New Jersey. The borough is nestled within the heart of the Raritan Valley region, with Lawrence Brook flowing through the center of the community. As of the 2020 United States census, the borough's population was 7,037, an increase of 144 (+2.1%) from the 2010 census count of 6,893, which in turn reflected a decrease of 107 (−1.5%) from the 7,000 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 reflected an increase of 11,133 (+39.8%) from the 27,999 counted in the 2000 census. Monroe Township also comprises the largest land area of any municipality in Middlesex County, at approximately 42 square miles (110 km2).
South Brunswick is a township in 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 in the New York metropolitan area. As of the 2020 United States census, the township's population was 47,043, its highest ever decennial census count and an increase of 3,626 (+8.4%) from the 2010 census count of 43,417, which in turn reflected an increase of 5,683 (+15.1%) from the 37,734 counted in the 2000 census.
West Freehold is an unincorporated community and census-designated place (CDP) within Freehold Township, in Monmouth County, New Jersey, United States. As of the 2010 United States Census, the CDP's population was 13,613. Due to the community's close proximity to the Battle of Monmouth, West Freehold is home to several important historical structures, which have been preserved in the 'West Freehold Village Historic District'. The historically preserved Monmouth Battlefield, along with the historic villages of Clarksburg, Englishtown, Smithburg and Tennent are a short distance away.
Franklin Township is a township in Somerset 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 68,364, an increase of 6,064 (+9.7%) from the 2010 census count of 62,300, which in turn reflected an increase of 11,397 (+22.4%) from the 50,903 counted in the 2000 census. The township was the state's 19th most-populous municipality in 2020, after being ranked 22nd in 2010.
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.
Blawenburg is an unincorporated community and census-designated place (CDP) located within Montgomery Township, in Somerset County, in the U.S. state of New Jersey. As of the 2010 United States Census, the CDP's population was 280. It is located at the juncture of two large roads, CR 518 and CR 601.
Mercerville is an unincorporated community and census-designated place (CDP) located within Hamilton Township, in Mercer County, in the U.S. state of New Jersey. As of the 2020 census, the CDP's population was 13,447. Until after the 2000 census, the area was part of the Mercerville-Hamilton Square CDP. For the 2010 Census it was split into two CDPs, Mercerville and Hamilton Square.
Jobstown is an unincorporated community and census-designated place (CDP) located within Springfield Township in Burlington County, in the U.S. state of New Jersey. The area is served as United States Postal Service ZIP Code 08041.
Ten Mile Run is an unincorporated community and census-designated place (CDP) located in Franklin Township, in Somerset County, in the U.S. state of New Jersey. As of the 2010 United States Census, the CDP's population was 1,959.
Othello is an unincorporated community and census-designated place (CDP) located within Greenwich Township, Cumberland County, in the U.S. state of New Jersey. It was first listed as a CDP in the 2020 census with a population of 132.
Encore at Monroe is a gated community and census-designated place (CDP) in Monroe Township, Middlesex County, New Jersey, United States. As of the 2020 census, it had a population of 625.
Forsgate is a golf course community and census-designated place (CDP) located in Monroe Township, Middlesex County, in the U.S. state of New Jersey. It consists of Forsgate Country Club and its associated housing developments. It is in the northwestern part of the township, bordered to the south across Forsgate Drive by Rossmoor, to the east by the Hightstown Industrial Track rail line, to the north by a branch rail line connecting Jamesburg and Monmouth Junction, and to the west by the New Jersey Turnpike at Exit 8A. It is 13 miles (21 km) south of New Brunswick and 19 miles (31 km) northeast of Trenton.
Regency at Monroe is a gated community and census-designated place (CDP) located in Monroe Township, Middlesex County, in the U.S. state of New Jersey. It is in the eastern part of the township, bordered by Mounts Mills Road to the north, Spotswood-Englishtown Road to the east, and Buckelew Avenue to the southwest. It is 7 miles (11 km) northwest of Freehold, 15 miles (24 km) south-southeast of New Brunswick, and 22 miles (35 km) northeast of Trenton.
United States 
New Jersey 
