Plainsboro Flag

Plainsboro

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

Plainsboro is located in Middlesex County, New Jersey. Plainsboro has a 2025 population of 24,884 . Plainsboro is currently growing at a rate of 1.33% annually and its population has increased by 3.57% since the most recent census, which recorded a population of 24,026 in 2020.

The average household income in Plainsboro is $175,905 with a poverty rate of 2.36%. The median age in Plainsboro is 38.4 years: 39.4 years for males, and 37.4 years for females. For every 100 females there are 93.6 males.

24.9K
Total Population
2,115
Density (mi²)
326 1.33%
Growth

Plainsboro Population

Plainsboro Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

Asian (56.3%)

White (31.38%)

Black or African American (7.21%)

Two or more races (4.35%)

Other race (0.76%)

Race
Population
Percentage (of total)
Asian13,48656.3%
White7,51631.38%
Black or African American1,7277.21%
Two or more races1,0434.35%
Other race1820.76%

Plainsboro Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Plainsboro'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

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)