Rocky Hill Flag

Rocky Hill

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

Rocky Hill is a borough located in Somerset County, New Jersey. Rocky Hill has a 2025 population of 739. Rocky Hill is currently declining at a rate of 0% annually and its population has decreased by -0.27% since the most recent census, which recorded a population of 741 in 2020.

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

739
Total Population
1,212
Density (mi²)
0 0%
Growth

Rocky Hill Population

Rocky Hill Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

Race
Population
Percentage (of total)
White69685.5%
Two or more races455.53%
Asian334.05%
Other race334.05%
Black or African American70.86%

Rocky Hill Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Rocky Hill'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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)