North Plainfield

County:: Middlesex County
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 2025 population of 22,444. North Plainfield is currently declining at a rate of -0.27% annually and its population has decreased by -1.34% since the most recent census, which recorded a population of 22,748 in 2020.

The average household income in North Plainfield is $99,705 with a poverty rate of 14.04%. The median age in North Plainfield is 36.9 years: 36.9 years for males, and 36.9 years for females.

Demographics

The racial composition of North Plainfield includes 31.17% other race, 27.48% White, 20.93% Black or African American, 3.84% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Other race

White

Black or African American

Two or more races

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
Other race	7,065	31.17%
White	6,229	27.48%
Black or African American	4,745	20.93%
Two or more races	3,757	16.57%
Asian	871	3.84%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

North Plainfield Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

North Plainfield's average per capita income is $42,803. Household income levels show a median of $83,529. The poverty rate stands at 14.04%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$105,362	-
Families	$95,292	$110,379
Households	$83,529	$99,705
Non Families	$44,821	$64,261

$42,803

Average Income

$83,529

Median Household Income

14.04%

Poverty Rate