Middlesex
Borough in Middlesex County, New Jersey

Middlesex is a borough in Middlesex County, New Jersey, with 14,636 residents (2020 Census). It sits at 39 ft (12 m) above sea level. The nearest town is Dunellen, 2.1 miles NE.
- 14,636residents (2020 Census)
- 39 ftelevation · 12 m
- 3.5 sq miland area · 9.0 km²
- 4,196 / sq mipopulation density
- 08846ZIP code
About Middlesex
Middlesex is a borough in Middlesex County, in the U.S. state of New Jersey. It is located within the Raritan Valley region. As of the 2020 United States census, the borough's population was 14,636, its highest decennial count and an increase of 1,001 (+7.3%) from the 2010 census count of 13,635, which in turn reflected a decline of 82 (−0.6%) from the 13,717 counted in the 2000 census.
Middlesex was incorporated as a borough by an act of the New Jersey Legislature on April 9, 1913, from portions of Piscataway, based on the results of a referendum held on May 6, 1913. The borough was named after Middlesex, England.
Text: Wikipedia · CC BY-SA 4.0
Middlesex weather: 7-day forecast
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Living in Middlesex
- Median household income
- $105,000
- Median home value
- $446,400
- Median rent
- $1,416/mo
- Median age
- 44.3
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Map of Middlesex
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Open in Google Maps ›Middlesex, NJ population
Middlesex had 14,636 residents in the 2020 Census.
| 2020 Census | 14,636 |
|---|---|
| Density | 4,196 per sq mi (1,620 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Middlesex at a glance
| State | New Jersey (NJ) |
|---|---|
| County | Middlesex County |
| Type | Borough |
| Population | 14,636 (2020) |
| Land area | 3.49 sq mi (9.0 km²) |
| Water area | 0.02 sq mi (0.06 km²) |
| Elevation | 39 ft (12 m) |
| Coordinates | 40.5743° N, 74.4987° W |
| ZIP code | 08846 |
| Official website | middlesexboro-nj.gov |
| Census code (GEOID) | 3445900 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Middlesex
- Dunellen2.1 mi NE
- South Bound Brook2.1 mi SW
- Bound Brook2.1 mi W
- Green Brook2.2 mi N
- Piscataway2.8 mi SE
- Franklin Center3.7 mi SW
- Finderne4.1 mi W
- Rutgers University-Busch Campus4.1 mi SE
- Warren4.3 mi N
- South Plainfield4.4 mi E
- North Plainfield4.5 mi NE
- Martinsville4.5 mi NW
Straight-line distance between town centers.
Frequently asked questions about Middlesex
What county is Middlesex in?
Middlesex is in Middlesex County, New Jersey.
What is the population of Middlesex, NJ?
14,636 people lived in Middlesex at the 2020 Census.
What is the ZIP code of Middlesex, NJ?
The ZIP code of Middlesex is 08846.
What is the elevation of Middlesex?
39 feet (12 m) above sea level.
What towns are near Middlesex?
Dunellen (2.1 mi), South Bound Brook (2.1 mi), Bound Brook (2.1 mi), Green Brook (2.2 mi), Piscataway (2.8 mi).
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