Plainsboro township

County:: Middlesex County
County Seat:: No
Area (mi²):: 11.763
State:: New Jersey

Plainsboro township is located in Middlesex County, New Jersey. Plainsboro township has a 2025 population of 23,898. Plainsboro township is currently growing at a rate of 0.05% annually but its population has decreased by -0.51% since the most recent census, which recorded a population of 24,021 in 2020.

The average household income in Plainsboro township is $175,905 with a poverty rate of 2.36%. The median age in Plainsboro township is 38.4 years: 39.4 years for males, and 37.4 years for females.

Demographics

The racial composition of Plainsboro township includes 56.3% Asian, 31.38% White, 7.21% Black or African American, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Asian

White

Black or African American

Two or more races

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
Asian	13,486	56.3%
White	7,516	31.38%
Black or African American	1,727	7.21%
Two or more races	1,043	4.35%
Other race	182	0.76%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Plainsboro township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Plainsboro township's average per capita income is $98,737. Household income levels show a median of $124,852. The poverty rate stands at 2.36%.

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	$189,844	-
Families	$175,307	$225,201
Households	$124,852	$175,905
Non Families	$79,028	$94,404

$98,737

Average Income

$124,852

Median Household Income

2.36%

Poverty Rate