Princeton Flag

Princeton

County:
Mercer County
County Seat:
No
Area (mi²):
17.946
State:
New Jersey

Princeton is a township located in Mercer County, New Jersey. Princeton has a 2025 population of 30,075. Princeton is currently declining at a rate of -0.35% annually and its population has decreased by -1.75% since the most recent census, which recorded a population of 30,610 in 2020.

The average household income in Princeton is $278,669 with a poverty rate of 6.84%.The median age in Princeton is 27.5 years: 26.8 years for males, and 29.2 years for females.

30.1K
Total Population
1,676
Density (mi²)
-107 -0.35%
Growth

Princeton Population

Princeton Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Princeton includes 62.82% White, 19.96% Asian, 6.66% Black or African American, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White19,12962.82%
Asian6,07719.96%
Two or more races2,3167.61%
Black or African American2,0296.66%
Other race5181.7%
Native American3701.22%
Native Hawaiian or Pacific Islander120.04%

Princeton Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Princeton's average per capita income is $103,306. Household income levels show a median of $184,113. The poverty rate stands at 6.84%.

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
Families$250,001$351,804
Married Families$250,001-
Households$184,113$278,669
Non Families$79,286$122,671

$103,306

Average Income

$184,113

Median Household Income

6.84%

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)