West Windsor, New Jersey

West Windsor, New Jersey
Location of West Windsor in Mercer County highlighted in red (right). Inset map: Location of Mercer County in New Jersey highlighted in orange (left).
Census Bureau map of West Windsor Township, New Jersey
West Windsor
Location in Mercer County
West Windsor
Location in New Jersey
West Windsor
Location in the United States
Coordinates: 40°17′25″N 74°37′40″W / 40.290253°N 74.627672°W / 40.290253; -74.627672
Country United States
State New Jersey
County Mercer
IncorporatedFebruary 21, 1798
Government
  TypeFaulkner Act Mayor-Council
  BodyTownship Council
  MayorHemant Marathe (term ends December 31, 2025)
  AdministratorMarlena Schmid
  Municipal clerkGay Huber
Area
  Total
26.25 sq mi (68.00 km2)
  Land25.55 sq mi (66.17 km2)
  Water0.71 sq mi (1.83 km2)  2.69%
  Rank101st of 565 in state
3rd of 12 in county
Elevation
92 ft (28 m)
Population
 (2020)
  Total
29,518
  Estimate 
(2023)
30,509
  Rank82nd of 565 in state
7th of 12 in county
  Density1,155.3/sq mi (446.1/km2)
   Rank367th of 565 in state
10th of 12 in county
Time zoneUTC−05:00 (Eastern (EST))
  Summer (DST)UTC−04:00 (Eastern (EDT))
ZIP Codes
Area code609
FIPS code3402180240
GNIS feature ID0882124
Websitewww.westwindsornj.org

West Windsor is a township in Mercer County, in the U.S. state of New Jersey. Located at the cross-roads between the Delaware Valley region to the southwest and the Raritan Valley region to the northeast, the township is considered to be an outer-ring suburb of New York City in the New York metropolitan area, as defined by the United States Census Bureau. As of the 2020 United States census, the township's population was 29,518, its highest decennial count ever and an increase of 2,353 (+8.7%) from the 27,165 recorded at the 2010 census, which in turn reflected an increase of 5,258 (+24.0%) from the 21,907 counted in the 2000 census.

West Windsor and adjacent East Windsor were established by an act of the New Jersey Legislature on February 9, 1797, and incorporated on February 21, 1798, as two of the state's initial group of 104 townships, by partitioning provincial Windsor Township.

The Borough of Princeton, now part of Princeton, was formed from a portion of the township on February 11, 1813. The township is closely associated with the more widely known municipality and several localities within West Windsor use Princeton in their name, the most notable of those being Princeton Junction. The Princeton 08540 post office facility is located within West Windsor, and covers parts of the township designated by Princeton mailing addresses.

A portion of Princeton University, covering 400 acres (160 ha) south of Lake Carnegie, is located in West Windsor. The university agreed in 2009 to make an annual payment in lieu of taxes of $50,000 that would be indexed to inflation to cover 81 acres (33 ha) of land in the township that the university had purchased in 2002.

West Windsor is frequently ranked among some of the highest-income municipalities in New Jersey. In 2008, Forbes listed West Windsor as the 15th most affluent neighborhood in the U.S. Using 2012–2016 data from the U.S. Census Bureau, NJ.com listed the township as the 9th highest-income in the state in its January 2018 article "The 19 wealthiest towns in New Jersey, ranked." Based on data from the American Community Survey for 2013–2017, West Windsor residents had a median household income of $175,684, ranked 4th in the state among municipalities with more than 10,000 residents, more than double the statewide median of $76,475.