Rocky Hill

County:: Somerset County
County Seat:: No
Area (mi²):: 0.61
State:: New Jersey

Rocky Hill borough is located in Somerset County, New Jersey. Rocky Hill borough has a 2025 population of 736. Rocky Hill borough is currently declining at a rate of -0.27% annually and its population has decreased by -0.67% since the most recent census, which recorded a population of 741 in 2020.

The average household income in Rocky Hill borough is $195,779 with a poverty rate of 4.3%. The median age in Rocky Hill borough is 42.8 years: 41.7 years for males, and 44.3 years for females.

Demographics

The racial composition of Rocky Hill borough includes 85.5% White, 4.05% Asian, 4.05% other race, and smaller percentages for Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	696	85.5%
Two or more races	45	5.53%
Asian	33	4.05%
Other race	33	4.05%
Black or African American	7	0.86%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Rocky Hill borough Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Rocky Hill borough's average per capita income is $81,510. Household income levels show a median of $127,344. The poverty rate stands at 4.3%.

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	$231,250	-
Families	$166,563	$237,834
Households	$127,344	$195,779
Non Families	$86,500	$125,224

$81,510

Average Income

$127,344

Median Household Income

4.3%

Poverty Rate