Princeton Junction

County:: Mercer County
County Seat:: No
Area (mi²):: 1.823
State:: New Jersey

Princeton Junction is a CDP located in Mercer County, New Jersey. Princeton Junction has a 2025 population of 1,911. Princeton Junction is currently declining at a rate of -1.9% annually and its population has decreased by -3.92% since the most recent census, which recorded a population of 1,989 in 2020.

The average household income in Princeton Junction is $218,140 with a poverty rate of 11.62%.The median age in Princeton Junction is 50.3 years: 49.9 years for males, and 50.5 years for females.

Demographics

The racial composition of Princeton Junction includes 55.37% White, 29.97% Asian, 3.85% Black or African American, and smaller percentages for and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	1,020	55.37%
Asian	552	29.97%
Two or more races	199	10.8%
Black or African American	71	3.85%

Princeton Junction Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Princeton Junction's average per capita income is $125,932. Household income levels show a median of $219,375. The poverty rate stands at 11.62%.

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	$268,780
Married Families	$250,001	-
Households	$219,375	$218,140
Non Families	-	$41,924

$125,932

Average Income

$219,375

Median Household Income

11.62%

Poverty Rate