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 Native American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Asian

Two or more races

Black or African American

Native American

Native Hawaiian or Pacific Islander

Other 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%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

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