South Brunswick, New Jersey

South Brunswick, New Jersey
Davidson's Mill Pond on the Lawrence Brook, site of the former grist mill
Location of South Brunswick within Middlesex County, highlighted in pink
Census Bureau map of South Brunswick, New Jersey
South Brunswick
Location in Middlesex County
South Brunswick
Location in New Jersey
South Brunswick
Location in the United States
Coordinates: 40°23′05″N 74°31′22″W / 40.384695°N 74.522762°W / 40.384695; -74.522762
Country United States
State New Jersey
CountyMiddlesex
Earliest mentionFebruary 28, 1778
IncorporatedFebruary 21, 1798
Government
  TypeFaulkner Act (council–manager)
  BodyTownship Council
  MayorCharlie Carley (D, term ends December 31, 2026)
  ManagerBryan B. Bidlack
  Municipal clerkBarbara Nyitrai
Area
  Total
41.02 sq mi (106.23 km2)
  Land40.61 sq mi (105.19 km2)
  Water0.40 sq mi (1.04 km2)  0.98%
  Rank51st of 565 in state
2nd of 25 in county
Elevation
82 ft (25 m)
Population
 (2020)
  Total
47,043
  Estimate 
(2023)
46,565
  Rank43rd of 565 in state
9th of 25 in county
  Density1,158.3/sq mi (447.2/km2)
   Rank366th of 565 in state
24th of 25 in county
Time zoneUTC−05:00 (Eastern (EST))
  Summer (DST)UTC−04:00 (Eastern (EDT))
ZIP Codes
08810 – Dayton
08824 – Kendall Park
08852 – Monmouth Junction
08528 – Kingston 08540 - Princeton
08512 - Cranbury
Area code(s)609 and 732
FIPS code3402368790
GNIS feature ID0882162
Websitewww.southbrunswicknj.gov

South Brunswick is a township in Middlesex County, in the U.S. state of New Jersey. The township is centrally located within the Raritan Valley region and is an outer-ring suburb of New York City in the New York metropolitan area. As of the 2020 United States census, the township's population was 47,043, its highest ever decennial census count and an increase of 3,626 (+8.4%) from the 2010 census count of 43,417, which in turn reflected an increase of 5,683 (+15.1%) from the 37,734 counted in the 2000 census.

South Brunswick was first mentioned in minutes of the Board of Chosen Freeholders on February 28, 1778, as being formed from New Brunswick Township. It was formally incorporated as one of New Jersey's initial group of 104 townships on February 21, 1798. Portions of the township have been taken to form Cranbury (as of March 7, 1872) and Plainsboro (on April 1, 1919).

Niche.com placed Monmouth Junction in the top 10 of its "2021 Best Places to Live in New Jersey". In 2021, SafeWise placed South Brunswick in the "100 Safest Cities in America".