Hillsborough

County:: Somerset County
County Seat:: No
Area (mi²):: 8.002
State:: New Jersey

Hillsborough is a CDP located in Somerset County, New Jersey. Hillsborough has a 2025 population of 27,331. Hillsborough is currently growing at a rate of 7.14% annually and its population has increased by 33.07% since the most recent census, which recorded a population of 20,539 in 2020.

The average household income in Hillsborough is $169,373 with a poverty rate of 2.98%.The median age in Hillsborough is 41.7 years: 40.6 years for males, and 43.2 years for females.

Demographics

The racial composition of Hillsborough includes 63.68% White, 17.96% Asian, 3.52% Black or African American, and smaller percentages for other race, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	14,201	63.68%
Asian	4,005	17.96%
Two or more races	2,157	9.67%
Black or African American	786	3.52%
Other race	619	2.78%
Native American	534	2.39%

Hillsborough Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Hillsborough's average per capita income is $79,270. Household income levels show a median of $142,275. The poverty rate stands at 2.98%.

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	$193,630	-
Families	$179,712	$196,262
Households	$142,275	$169,373
Non Families	$89,057	$110,372

$79,270

Average Income

$142,275

Median Household Income

2.98%

Poverty Rate