Cities and Towns in Middlesex County, New Jersey

Founded in 1683, Middlesex County is one of 21 counties in the state of New Jersey. Historically, Middlesex County was one of four original counties created in East Jersey. The city of New Brunswick is the county seat. With FIPS code of 23, Middlesex County has a population of 860,807 and area of 311 square miles (805 km²).

List of all cities in Middlesex County, NJ alphabetically

City/Town Postal Code Area Code
Avenel, NJ 07001 732/848
Carteret, NJ 07008 732/848
Colonia, NJ 07067 732/848
Cranbury, NJ 08512 609
Dayton, NJ 08810 732/848
Dunellen, NJ 08812 732/848
East Brunswick, NJ 08816 732/848
East Windsor, NJ 08512 609
Edison, NJ 08817 732/848
08818 732/848
08820 732/848
08837 732/848
08899 732/848
Fords, NJ 08863 732/848
Green Brook, NJ 08812 732/848
Helmetta, NJ 08828 732/848
Highland Park, NJ 08904 732/848
Hopelawn, NJ 08861 732/848
Iselin, NJ 08830 732/848
Jamesburg, NJ 08831 732/848
Johnson & Johnson, NJ 08933 732/848
Keasbey, NJ 08832 732/848
Kendall Park, NJ 08824 732/848
Kilmer Gmf, NJ 08906 732/848
Laurence Harbor, NJ 08879 732/848
Laurence Hbr, NJ 08879 732/848
Menlo Park, NJ 08837 732/848
Merrill Lynch, NJ 08988 732/848
08989 732/848
Metuchen, NJ 08840 732/848
Middlesex, NJ 08846 732/848
Milltown, NJ 08850 732/848
Monmouth Junction, NJ 08852 732/848
Monroe, NJ 08831 732/848
Morgan, NJ 08879 732/848
New Brunswick, NJ 08901 732/848
08902 732/848
08903 732/848
08904 732/848
08905 732/848
08906 732/848
08922 732/848
08933 732/848
08988 732/848
08989 732/848
North Brunswick, NJ 08902 732/848
Old Bridge, NJ 08857 732/848
Parlin, NJ 08859 732/848
Perth Amboy, NJ 08861 732/848
08862 732/848
08863 732/848
Piscataway, NJ 08854 732/848
08855 732/848
Plainsboro, NJ 08536 609
Port Reading, NJ 07064 732/848
Prudential Mutual Fund Servi, NJ 08922 732/848
Sayreville, NJ 08871 732/848
08872 732/848
Sewaren, NJ 07077 732/848
South Amboy, NJ 08879 732/848
South Brunswick, NJ 08810 732/848
South Plainfield, NJ 07080 908
South River, NJ 08882 732/848
Spotswood, NJ 08884 732/848
Wachovia, NJ 08905 732/848
West Carteret, NJ 07008 732/848
Woodbridge, NJ 07095 732/848

Major Cities and Towns in Middlesex County, New Jersey

New Brunswick, New Jersey

Location and History

  • Area: 5.0 square miles
  • Population: 55,000 (2020 Census)
  • Zip Codes: 08901, 08903, 08904
  • Latitude: 40.4862° N
  • Longitude: 74.4487° W

New Brunswick is located in the central part of Middlesex County, situated along the Raritan River. Founded in the late 17th century, it became an important military and transportation center during the American Revolutionary War. The city’s strategic location made it a vital supply route and a site for several military encounters. As the seat of Middlesex County, New Brunswick developed into a bustling urban center in the 19th century, with a thriving economy based on manufacturing, shipping, and railroads. The establishment of Rutgers University in 1766 greatly influenced the city’s growth, making it a hub of education and culture. Over the years, New Brunswick has undergone significant revitalization efforts, particularly in its downtown area, attracting new businesses and residents. Today, the city is known for its diverse population, vibrant arts scene, and numerous cultural institutions, solidifying its role as a key urban center in New Jersey.

Major Schools and Landmarks

New Brunswick is served by the New Brunswick Public Schools district, which includes New Brunswick High School and several elementary and middle schools. Rutgers University, one of the largest public universities in the U.S., is a major educational landmark in the city, offering a wide range of academic programs and cultural events. Notable landmarks in New Brunswick include the State Theatre New Jersey, a historic venue that hosts concerts and performances, and the George Street Playhouse, which offers professional theater productions. The city is also home to the Zimmerli Art Museum, which features an extensive collection of American art and works from around the world. The scenic Raritan Riverfront provides recreational opportunities, including walking paths and parks, while the New Brunswick Performing Arts Center enhances the city’s cultural offerings. With its combination of educational institutions, historical significance, and vibrant community, New Brunswick is a dynamic city in Middlesex County.

Edison, New Jersey

Location and History

  • Area: 32.2 square miles
  • Population: 102,000 (2020 Census)
  • Zip Codes: 08817, 08820, 08899
  • Latitude: 40.5250° N
  • Longitude: 74.3432° W

Edison is located in central Middlesex County, New Jersey, and is named after the famous inventor Thomas Edison, who had his laboratory in the area in the late 19th century. The township was formed in 1954 from portions of Metuchen and Piscataway, but the history of the area goes back to early colonial times. Edison experienced significant development in the mid-20th century, transitioning from a rural community to a suburban township as families sought residential options near New York City. The establishment of major highways and transportation routes, including the New Jersey Turnpike and the Garden State Parkway, further fueled its growth. Today, Edison is known for its diverse population, strong economy, and variety of cultural attractions, including parks and recreational facilities. The township continues to thrive as a suburban community with easy access to urban amenities.

Major Schools and Landmarks

Edison is served by the Edison Township Public Schools district, which includes several elementary and middle schools, as well as Edison High School, known for its academic achievements and extracurricular activities. The township is also home to private schools, such as St. James School and The Wardlaw+Hartridge School. Notable landmarks in Edison include the Thomas Edison Center at Menlo Park, which commemorates the inventor’s contributions and features a museum and historical exhibits. The Middlesex Greenway provides scenic walking and biking paths through the township, promoting outdoor recreation. Edison is also home to the New Jersey Convention and Exposition Center, which hosts various events and trade shows. The city’s diverse shopping centers, such as Menlo Park Mall, offer a variety of retail and dining options. With its strong educational institutions, cultural landmarks, and access to transportation, Edison is a thriving community in Middlesex County.

Piscataway, New Jersey

Location and History

  • Area: 18.6 square miles
  • Population: 60,000 (2020 Census)
  • Zip Codes: 08854, 08855
  • Latitude: 40.5000° N
  • Longitude: 74.4243° W

Piscataway is located in central Middlesex County, New Jersey, bordered by the Raritan River to the east. The area was originally inhabited by the Lenape Native Americans and was settled by Europeans in the 17th century. Piscataway was officially incorporated in 1798 and has a rich agricultural history. As the township developed, it became an important transportation and industrial hub, particularly during the 19th century. The establishment of major transportation routes, including railroads and highways, facilitated growth and commerce. Piscataway is known for its diverse population and is home to a significant portion of the Rutgers University campus, which contributes to the township’s cultural and educational landscape. Today, Piscataway continues to evolve as a suburban community with a blend of residential, commercial, and recreational areas.

Major Schools and Landmarks

Piscataway is served by the Piscataway Township School District, which includes several elementary, middle, and high schools, including Piscataway High School, known for its academic and athletic programs. The township is also home to the private Middlesex County Academy for Science, Mathematics, and Engineering Technologies. Key landmarks in Piscataway include the Rutgers University campus, which hosts a variety of cultural and educational events throughout the year. The Buccleuch Park is a notable green space offering recreational opportunities, including walking trails and sports fields. The Piscataway Public Library serves as an educational resource for residents, hosting events and programs for all ages. Another significant landmark is the historic East Jersey Old Town Village, which showcases the area’s early colonial history. Piscataway’s commitment to education, history, and community engagement makes it a vibrant place to live and work.

South Brunswick, New Jersey

Location and History

  • Area: 42.0 square miles
  • Population: 46,000 (2020 Census)
  • Zip Codes: 08810, 08852
  • Latitude: 40.3846° N
  • Longitude: 74.5550° W

South Brunswick is located in Middlesex County, New Jersey, just south of New Brunswick. The area was originally settled in the 18th century and was primarily agricultural. South Brunswick was officially incorporated as a township in 1798 and has seen significant growth over the years, particularly in the latter half of the 20th century. The township’s proximity to major highways and its location along the Raritan River made it an attractive destination for families and businesses. Today, South Brunswick is known for its diverse population, strong educational institutions, and suburban amenities. The township offers a mix of residential neighborhoods, parks, and commercial developments, making it a desirable place to live for those commuting to nearby urban centers.

Major Schools and Landmarks

South Brunswick is served by the South Brunswick School District, which includes several elementary and middle schools, as well as South Brunswick High School, recognized for its academic and extracurricular programs. The township is also home to private schools, including St. Augustine of Canterbury School. Major landmarks in South Brunswick include the historic Kingston Mill, which highlights the area’s industrial past, and the South Brunswick Municipal Building, which serves as a center for local government. The town also features several parks, including the expansive Davis Park and the scenic Neshanic Station Park, offering recreational opportunities for residents. The nearby Rutgers Gardens provide beautiful walking trails and gardens for the community to enjoy. South Brunswick’s commitment to education, community services, and outdoor recreation makes it an attractive place for families and professionals.

Monroe Township, New Jersey

Location and History

  • Area: 42.4 square miles
  • Population: 45,000 (2020 Census)
  • Zip Codes: 08831
  • Latitude: 40.3486° N
  • Longitude: 74.4145° W

Monroe Township is located in the central part of Middlesex County, New Jersey. Originally settled in the 17th century, the area was primarily agricultural and rural. Monroe was incorporated as a township in 1838 and was named after President James Monroe. The township saw slow growth for many years but began to experience significant development in the late 20th century, particularly after the construction of major highways that improved access to the region. The population grew as people sought suburban living while still being close to urban amenities. Today, Monroe Township is known for its active adult communities, family-friendly atmosphere, and commitment to preserving its green spaces. The township continues to develop while maintaining its rural charm, making it an appealing destination for both young families and retirees.

Major Schools and Landmarks

Monroe Township is served by the Monroe Township Public Schools district, which includes Monroe Township High School, recognized for its strong academic and extracurricular programs. The township also offers several private educational institutions, including the Hebrew Academy of Middlesex County. Major landmarks in Monroe include the beautiful Thompson Park, which features walking trails, sports facilities, and picnic areas, providing ample recreational opportunities for residents. The township is also home to the Monroe Township Community Center, which hosts various programs and events throughout the year. The local public library serves as an educational resource, offering books, programs, and community events for all ages. Monroe is known for its annual events, such as the Monroe Township Day, which celebrates community spirit and local businesses. The township’s combination of educational resources, recreational amenities, and commitment to preserving its natural environment makes it an attractive place to live.