Plainfield Flag

Plainfield

County:
Union County
County Seat:
No
Area (mi²):
5.959
State:
New Jersey

Plainfield is a city located in Union County, New Jersey. Plainfield has a 2025 population of 54,890. Plainfield is currently growing at a rate of 0.2% annually and its population has increased by 1.01% since the most recent census, which recorded a population of 54,340 in 2020.

The average household income in Plainfield is $100,586 with a poverty rate of 17.14%.The median age in Plainfield is 33 years: 32.3 years for males, and 33.8 years for females.

54.9K
Total Population
9,211
Density (mi²)
110 0.2%
Growth

Plainfield Population

Demographics

Economics and Income Statistics

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)