Hamilton Square

County:: Mercer County
County Seat:: No
Area (mi²):: 4.276
State:: New Jersey

Hamilton Square is a CDP located in Mercer County, New Jersey. Hamilton Square has a 2025 population of 11,672. Hamilton Square is currently declining at a rate of -0.63% annually but its population has increased by 1.27% since the most recent census, which recorded a population of 11,526 in 2020.

The average household income in Hamilton Square is $148,426 with a poverty rate of 2.11%. The median age in Hamilton Square is 46.2 years: 44.6 years for males, and 50.6 years for females.

Demographics

The racial composition of Hamilton Square includes 88.65% White, 5.2% Asian, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	10,322	88.65%
Asian	606	5.2%
Two or more races	359	3.08%
Black or African American	266	2.28%
Other race	83	0.71%
Native American	7	0.06%
Native Hawaiian or Pacific Islander	0	0%

Hamilton Square Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Hamilton Square's average per capita income is $72,481. Household income levels show a median of $135,694. The poverty rate stands at 2.11%.

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	$152,235	-
Families	$149,085	$166,118
Households	$135,694	$148,426
Non Families	$78,125	$86,847

$72,481

Average Income

$135,694

Median Household Income

2.11%

Poverty Rate