Middlesex County Map, New Jersey

Written and Fact-checked by | Updated On: April 28, 2026 | 15:25 ET

Map of Middlesex County - Middlesex County is a county located in the U.S. state of New Jersey. Middlesex County Map showing cities, highways, important places and water bodies. Get Where is Middlesex County located in the map, major cities in Middlesex county, population, areas, and places of interest.

Map of Middlesex County, New Jersey

Map of Middlesex County, New Jersey

About Middlesex County Map, Alabama: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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Map of Middlesex County, New Jersey

Middlesex County is a county located in the U.S. state of New Jersey. It's county seat is New Brunswick. As per 2020 census, the population of Middlesex County is 860807 people and population density is 2767.87 square miles. According to the United States Census Bureau, the county has a total area of 311 sq mi (805 km2). Middlesex County was established on 1683.

Middlesex County Facts

ContinentNorth America
CountryUnited States
StateNew Jersey
County SeatNew Brunswick
Largest City/TownEdison
Established1683
Total Area322 sq mi
Land Area309 sq mi
Water Area13 sq mi
Population863,162 (Census 2020)
Population Density2,790 people per sq mi
Time ZoneEastern (EST)
Major HighwaysI-95, I-287, US-1, NJ Turnpike, Garden State Parkway
Neighboring CountiesSomerset County, Mercer County, Monmouth County, Union County
Famous ForRutgers University, diverse communities, central location
Top AttractionsRutgers University, Thomas Edison Center, Roosevelt Park
Official Websitehttps://www.middlesexcountynj.gov

Cities and Towns in Middlesex County, New Jersey

  • New Brunswick (county seat) – 55,266 (Census 2020)
  • Edison – 107,588 (Census 2020)
  • Woodbridge Township – 103,639 (Census 2020)
  • Piscataway – 60,804 (Census 2020)

Roads and Highways in Middlesex County, New Jersey

Middlesex County is a major transportation hub in central New Jersey with extensive highway access.

  • Interstate 95 (I-95) – Part of the New Jersey Turnpike connecting the county to New York and Philadelphia
  • Interstate 287 (I-287) – Connects the county to northern and western New Jersey
  • U.S. Route 1 (US-1) – Major corridor linking New Brunswick to Trenton and Newark
  • Garden State Parkway – Runs north-south connecting the county to other parts of New Jersey

Neighboring Counties of Middlesex County

  • Somerset County (northwest)
  • Union County (north)
  • Monmouth County (east)
  • Mercer County (southwest)

Top Attractions in Middlesex County, New Jersey

Middlesex County offers a mix of educational institutions, parks, and cultural attractions.

  • Rutgers University – Major public university with historic campus and events
  • Thomas Edison Center at Menlo Park – Museum dedicated to the inventor
  • Roosevelt Park – Popular park with lake, walking paths, and recreation
  • Cheesequake State Park – Unique park with diverse ecosystems and trails
  • State Theatre New Jersey – Venue for performances and cultural events
  • Johnson Park – Large park with open space, trails, and a small zoo
  • Raritan River – Scenic river offering outdoor recreation opportunities

Distance from Middlesex County to Nearby Cities

  • New Brunswick to New York City – 40 mi (64 km)
  • New Brunswick to Newark – 25 mi (40 km)
  • New Brunswick to Trenton – 30 mi (48 km)
  • New Brunswick to Philadelphia – 65 mi (105 km)
  • New Brunswick to Atlantic City – 90 mi (145 km)

FAQs about Middlesex County

What is Middlesex County known for?

Middlesex County is known for Rutgers University, diverse communities, and its central location.

What is the county seat of Middlesex County?

New Brunswick is the county seat of Middlesex County.

What is the largest municipality in Middlesex County?

Edison is the largest municipality by population.

Is Middlesex County centrally located?

Yes, it is located in central New Jersey between New York City and Philadelphia.

What attractions are in Middlesex County?

Visitors can explore universities, parks, museums, and cultural venues.