North Plainfield Flag

North Plainfield

County Seat:
No
Area (mi²):
2.807
State:
New Jersey

North Plainfield is a borough located in Middlesex County, New Jersey. North Plainfield has a 2026 population of 23,072. North Plainfield is currently growing at a rate of 1.29% annually and its population has increased by 1.42% since the most recent census, which recorded a population of 22,749 in 2020.

23.1K
Total Population
8,218
Density (mi²)
294 1.29%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)