Princeton

County:: Bureau County
County Seat:: Yes
Area (mi²):: 8.24
State:: Illinois

Princeton is a city located in Bureau County, Illinois. Princeton has a 2025 population of 7,620. It is also the county seat of Bureau County. Princeton is currently declining at a rate of -0.52% annually and its population has decreased by -2.55% since the most recent census, which recorded a population of 7,819 in 2020.

The average household income in Princeton is $78,776 with a poverty rate of 15.83%. The median age in Princeton is 45.4 years: 40.9 years for males, and 49.4 years for females.

Demographics

The racial composition of Princeton includes 90.52% White, and smaller percentages for Asian, Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	7,087	90.52%
Two or more races	489	6.25%
Asian	105	1.34%
Black or African American	74	0.95%
Other race	74	0.95%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Princeton Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Princeton's average per capita income is $41,160. Household income levels show a median of $57,682. The poverty rate stands at 15.83%.

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	$102,315	-
Families	$76,853	$98,294
Households	$57,682	$78,776
Non Families	$39,722	$55,020

$41,160

Average Income

$57,682

Median Household Income

15.83%

Poverty Rate