Middlesex County, New Jersey
Middlesex County is one of 21 counties of New Jersey. Middlesex is part of the New York metropolitan area, and its county seat is New Brunswick.[2]
Middlesex County | |
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County of Middlesex | |
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Nickname(s): The Greatest County in the Land[1] | |
![]() Location within the U.S. state of New Jersey | |
![]() New Jersey's location within the U.S. | |
Coordinates: 40.44°N 74.41°W | |
Country | ![]() |
State | ![]() |
Founded | 1683 |
Named for | Historic English county of Middlesex |
Seat | New Brunswick |
Largest city | Edison (population) Monroe Township (area) |
Area | |
• Total | 322.83 sq mi (836.1 km2) |
• Land | 308.91 sq mi (800.1 km2) |
• Water | 13.91 sq mi (36.0 km2) 4.31%% |
Population (2010) | |
• Total | 809,858 842,798 (2017 est.; 2nd in state) |
• Density | 2,722/sq mi (1,051.0/km2) |
Congressional districts | 6th, 12th |
Website | www |
Higher education
- Middlesex County College (Edison - main campus; New Brunswick, Perth Amboy)[3]
- Rutgers University New Brunswick Campus (New Brunswick, Piscataway)[4]
- Rutgers Biomedical and Health Sciences (New Brunswick)[5]
- Princeton University – Forrestal Campus (Plainsboro)[6]
- DeVry University (North Brunswick)[7]
Municipalities

Index map of Middlesex County municipalities (click to see index key)

1947 road map
Municipalities in Middlesex County (with 2010 Census data for population, housing units and area in square miles) are:[8]
Municipality | Municipal type |
Population | Housing units |
Total area |
Water area |
Land area |
Pop. density |
Housing density |
---|---|---|---|---|---|---|---|---|
Carteret | Borough | 22,844 | 8,148 | 5.00 | 0.58 | 4.42 | 5,171.1 | 1,844.4 |
Cranbury Township | Township | 3,857 | 1,371 | 13.40 | 0.15 | 13.25 | 291.2 | 103.5 |
Dunellen | Borough | 7,227 | 2,683 | 1.05 | 0.00 | 1.05 | 6,894.8 | 2,559.7 |
East Brunswick Township | Township | 47,512 | 17,367 | 22.27 | 0.57 | 21.70 | 2,189.6 | 800.4 |
Edison Township | Township | 99,967 | 36,302 | 30.64 | 0.70 | 29.94 | 3,339.0 | 1,212.5 |
Helmetta | Borough | 2,178 | 920 | 0.91 | 0.06 | 0.85 | 2,562.9 | 1,082.6 |
Highland Park | Borough | 13,982 | 6,203 | 1.82 | 0.01 | 1.81 | 7,728.1 | 3,428.5 |
Jamesburg | Borough | 5,915 | 2,267 | 0.88 | 0.01 | 0.88 | 6,741.8 | 2,583.9 |
Metuchen | Borough | 13,574 | 5,440 | 2.77 | 0.00 | 2.76 | 4,910.4 | 1,967.9 |
Middlesex | Borough | 13,635 | 5,148 | 3.54 | 0.02 | 3.52 | 3,876.2 | 1,463.5 |
Milltown | Borough | 6,893 | 2,698 | 1.60 | 0.04 | 1.55 | 4,443.0 | 1,739.0 |
Monroe Township | Township | 39,132 | 18,002 | 42.23 | 0.26 | 41.97 | 932.3 | 428.9 |
New Brunswick | City | 55,181 | 15,053 | 5.79 | 0.56 | 5.23 | 10,556.4 | 2,879.7 |
North Brunswick Township | Township | 40,742 | 15,045 | 12.27 | 0.27 | 12.00 | 3,396.2 | 1,254.1 |
Old Bridge Township | Township | 65,375 | 24,638 | 40.78 | 2.72 | 38.06 | 1,717.7 | 647.3 |
Perth Amboy | City | 50,814 | 16,556 | 5.96 | 1.26 | 4.70 | 10,806.8 | 3,521.0 |
Piscataway Township | Township | 56,044 | 17,777 | 19.03 | 0.19 | 18.83 | 2,975.5 | 943.8 |
Plainsboro Township | Township | 22,999 | 10,089 | 12.21 | 0.42 | 11.78 | 1,951.6 | 856.1 |
Sayreville | Borough | 42,704 | 16,393 | 18.70 | 2.86 | 15.84 | 2,695.7 | 1,034.8 |
South Amboy | City | 8,631 | 3,576 | 2.69 | 1.15 | 1.55 | 5,577.1 | 2,310.7 |
South Brunswick Township | Township | 43,417 | 15,708 | 41.04 | 0.39 | 40.65 | 1,068.1 | 386.4 |
South Plainfield | Borough | 23,385 | 8,093 | 8.36 | 0.03 | 8.33 | 2,808.5 | 971.9 |
South River | Borough | 16,008 | 5,957 | 2.92 | 0.15 | 2.77 | 5,781.4 | 2,151.4 |
Spotswood | Borough | 8,257 | 3,242 | 2.47 | 0.20 | 2.27 | 3,642.2 | 1,430.1 |
Woodbridge Township | Township | 99,585 | 36,124 | 24.51 | 1.29 | 23.21 | 4,290.0 | 1,556.2 |
References
- Middlesex County The Greatest County in the Land Archived 2016-10-28 at the Wayback Machine, County of Middlesex, New Jersey. Accessed October 27, 2016.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- Locations, Middlesex County College. Accessed September 17, 2015.
- One Community, Five Campuses, Rutgers University–New Brunswick. Accessed September 17, 2015.
- Locations and Directions Archived 2015-09-07 at the Wayback Machine, Rutgers Biomedical and Health Sciences. Accessed September 17, 2015.
- Forrestal Campus Archived 2008-07-05 at the Wayback Machine, Princeton University. Accessed July 23, 2008.
- North Brunswick Campus, DeVry University. Accessed September 17, 2015.
- GCT-PH1: Population, Housing Units, Area, and Density: 2010 - County -- County Subdivision and Place from the 2010 Census Summary File 1 for Middlesex County, New Jersey Archived 2020-02-12 at Archive.today, United States Census Bureau. Accessed January 19, 2014.
Other websites

Wikimedia Commons has media related to Middlesex County, New Jersey.
- Middlesex County official website Retrieved July 1, 2008.
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