North Plainfield, New Jersey

North Plainfield, New Jersey
Location of North Plainfield in Somerset County highlighted in yellow (right). Inset map: Location of Somerset County in New Jersey highlighted in black (left).
Census Bureau map of North Plainfield, New Jersey
North Plainfield
Location in Somerset County
North Plainfield
Location in New Jersey
North Plainfield
Location in the United States
Coordinates: 40°37′17″N 74°26′22″W / 40.621255°N 74.439466°W / 40.621255; -74.439466
Country United States
State New Jersey
County Somerset
IncorporatedJune 9, 1885
Government
  TypeMayor-Council
  BodyBorough Council
  MayorLawrence J. La Ronde (D, term ends December 31, 2024)
  AdministratorDavid E. Hollod
  Municipal clerkMichele Garry (acting)
Area
  Total
2.82 sq mi (7.31 km2)
  Land2.81 sq mi (7.27 km2)
  Water0.01 sq mi (0.03 km2)  0.46%
  Rank351st of 565 in state
14th of 21 in county
Elevation
72 ft (22 m)
Population
 (2020)
  Total
22,808
  Estimate 
(2023)
22,566
  Rank118th of 565 in state
6th of 21 in county
  Density8,125.4/sq mi (3,137.2/km2)
   Rank47th of 565 in state
1st of 21 in county
Time zoneUTC−05:00 (Eastern (EST))
  Summer (DST)UTC−04:00 (Eastern (EDT))
ZIP Code
07060, 07062, 07063
Area code(s)732 and 908
FIPS code3403553280
GNIS feature ID0885326
Websitenorthplainfieldnj.gov

North Plainfield is a borough in Somerset 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 22,808, an increase of 872 (+4.0%) from the 2010 census count of 21,936, which in turn reflected an increase of 833 (+3.9%) from the 21,103 counted in the 2000 census.

North Plainfield Township was created from portions of Warren Township by an act of the New Jersey Legislature passed on April 2, 1872. The borough of North Plainfield became an independent municipality on June 9, 1885. The name derives from Plainfield, which derived its name from a local estate or from its scenic location.

In 1902, the New Jersey Legislature approved measures that would have allowed the borough to become part of Union County (a measure repealed in 1903) and to allow for a merger of North Plainfield with the City of Plainfield subject to the approval of a referendum by voters in both municipalities.

North Plainfield is home to the Washington Park Historic District, which was listed on the National Register of Historic Places in 1987.