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Middlesex County

New Jersey

The Greatest County in the Land
The Heart of New Jersey

Facts & Information

The Cities and communities of Middlesex County, New Jersey *



Carteret, Clearbrook Park, Colonia, Concordia, Cranbury CDP, Cranbury Township

Dayton, Deans, Dunellen

East Brunswick, East Brunswick Township, Edison


Heathcote, Helmetta, Highland Park, Hopelawn



Keasbey, Kendall Park, Kingston CDP

Laurence Harbor

Madison Park, Metuchen, Mechanicsville, Menlo Park Terrace, Middlesex, Milltown, Monmouth Junction, Monroe Township

New Brunswick, North Brunswick Township

Old Bridge CDP, Old Bridge Township

Perth Amboy, Piscataway Township, Plainsboro Center, Plainsboro Township, Port Reading, Princeton Meadows


Sayreville, Sewaren, Society Hill, South Amboy, South Brunswick Township, South Plainfield, South River, Spotswood

Whittingham, Woodbridge, Woodbridge Township

*This list of cities may not be complete. The list may contain towns, cities, villages, boroughs, townships, ghost towns and other populated places.

If you have information about any of these unlinked communities or have a community not listed at all, please send it to us and we will add a page for that community. Some of these places above may only be neighborhoods or local area names and are not listed with the census at all or just included in a larger surrounding designated census area..

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Information & Facts about Middlesex County, New Jersey

Attractions & other Information - Climate - Economy - Genealogy - Geography -
Government - History - Libraries - Location - Organizations & Groups -
Other Facts & Figures - Population - Schools


Official Middlesex County website

The county has a seven member board of Chosen Freeholders. They are elected, at-large, to three year terms that are staggered.
One of the members of the board is chosen each January to be the directory and another to be the deputy director.
All members of the board serve on various committees and oversee departments.

The county seat is New Brunswick

See the county seal and its history

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1790 - 15,956
1800 - 17,890
1810 - 20,381
1820 - 21,470
1830 - 23,157
1840 - 21,893
1850 - 28,635
1860 - 34,812
1870 - 45,029
1880 - 52,286
1890 - 61,754
1900 - 79,762
1910 - 114,426
1920 - 162,334
1930 - 212,208
1940 - 217,077
1950 - 264,872
1960 - 433,856
1970 - 583,813
1980 - 595,893
1990 - 671,780
2000 - 750,162
2009 - 790,738
2010 - 809,858

The 1840 census figure indicates a time when the county lost some of its territory.

Population Density:
2000 - 2,612 persons per square mile

Median age:
2000 - 35.7 years

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Middlesex County is located in central New Jersey.

Neighboring Counties:
North - Union County
Southeast - Monmouth County
Southwest - Mercer County
Northwest - Somerset County
Northeast - Richmond County, New York

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Here is a current weather page for Middlesex County

Annual average rainfall: 44.9 inches
Annual average snowfall: 24.7 inches
Average summer high: 86
Average winter low: 22.4

Average high: 62.2
verage low: 42.4

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Other Facts and Figures:

The center of population of the state is located in the county in East Brunswick Township.

Number of Housing Units:
2000 - 273,637

Median Household Income:
2000 - $61,446
2009 - $75,531

Per Capita Income:
2000 - $26,535

Median House value:
2000 - $164,400
2009 - $348,100

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The county was named for Middlesex County in England. It was thus named because it was between Essex and Sussex, being in the middle. It was formed in 1683 from the province of East Jersey. Somerset County was carved from Middlesex in 1688 and part of Mercer County also came from Middlesex in 1838. The countywas incorporated in May 1785.

This is a history page for Middlesex County. Also try this history page. Here is a timeline history page for the county.

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Land area: 310 square miles
Water area: 13 square miles
Total area: 323 square miles

The county is mostly flat. The highest point is a hill near Route 1 in South Brunswick Township that is only about 300 feet above sea level. The lowest point is sea level.

average elevation: 101 feet above sea level

40.46 N and 74.43 W

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Middlesex County US GenWeb page
Genealogy Trails page for Middlesex County

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Libraries of Middlesex Automation Consortium

Middlesex Public Library
1300 Mountain Ave
Middlesex, NJ 0884
Phone: 732-356-6602

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Middlesex County Superintendent of Schools
Middlesex Board of Education - School District

Middlesex County College in Edison

Rutgers, the State University of New Jersey in New Brunswick and Piscataway

University of Medicine and Dentistry of New Jersey in New Brunswick

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The major employer in the county is Rutgers, the State University. Other major companies include Bristol-Myers Squibb, Merrill Lynch, Johnson & Johnson and many others.

Middlesex County Economic Development

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Organizations & Groups

East Brunswick Regional Chamber of Commerce
PO Box 56
East Brunswick, NJ 08816
Phone: 732-257-3009

Edison Chamber of Commerce
336 Raritan Center Parkway
Edison, NJ 08837
Phone: 732-738-9485

Highland Park Chamber Of Commerce
P.O. Box 4733
Highland Park, NJ 08904
Phone: 732-249-3375

Jamesburg Area Chamber of Commerce
131 Perrineville Rd
Jamesburg, NJ 08831
Phone: 732-521-2222 ext 112

Metuchen Area Chamber of Commerce
323 Main Street, Suite B
Metuchen, NJ 08840
Phone: 732-548-2964

Middlesex County Regional Chamber of Commerce
109 Church Street
New Brunswick, NJ 08901
Phone: 732-745-8090

North Brunswick Chamber of Commerce
P.O.Box 7290
North Brunswick, NJ 08902
Phone: 732-247-5150

Chamber of Commerce of Old Bridge - Sayreville - South Amboy
PO Box 5241
Old Bridge, N.J. 08857
Phone: 732-607-6340

Perth Amboy Chamber of Commerce
69A Smith Street
Perth Amboy, NJ 08861
Phone: 734-442-7400

Chamber of Commerce of Piscataway - Middlesex - South Plainfield
1315 Stelton Road
Piscataway, NJ 08854
Phone: 732-394-0220

South Brunswick Chamber of Commerce
P.O. Box 670
Monmouth Junction, NJ 08852
Phone: 732-297-2051

Woodbridge Metropolitan Chamber of Commerce
52 Main Street
Woodbridge, NJ 07095
Phone: 732-636-4040

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Attractions & Other Information

Middlesex County has over 20 county parks with varied recreational facilities.

Cornelius Low House - County Museum

Edison Memorial State Park - at Thomas Alva Edison's Menlo Park Library
Thomas Edison Center

Middlesex County from the New Jersey Visitors Nedwork

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This page was last updated on 8 July 2011 at 10:39 am

This page was created on 7 July 2011

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