Holtsville Flag

Holtsville

County:
Suffolk County
County Seat:
No
Area (mi²):
7.109
State:
New York

Holtsville is a CDP located in Suffolk County, New York. Holtsville has a 2026 population of 19,143. Holtsville is currently declining at a rate of -0.19% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median household income in Holtsville is $133,679 with a poverty rate of 4.13%. The median age in Holtsville is 38.9 years: 38.6 years for males, and 39.4 years for females. For every 100 females there are 100.6 males.

19.1K
Total Population
2,693
Density (mi²)
-36 -0.19%
Growth

Holtsville Population

Holtsville Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202619,143-36-0.19%
202519,179-35-0.18%

Median Age

Overall: 38.9 years
Female: 39.4 years
Male: 38.6 years

Holtsville Adults

There are 15,238 adults, (2,780 of whom are seniors) in Holtsville.

Sex Ratio

Female: 9,641 (49.8%)
Male: 9,703 (50.2%)

Demographics

The racial composition of Holtsville includes 75.49% White, 5.91% other race, 4.23% Black or African American, 3.06% Asian, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White14,60375.49%
Two or more races2,02210.45%
Other race1,1435.91%
Black or African American8194.23%
Asian5923.06%
Native American1650.85%
Race
Population ↓
Percentage (of total)
Two or more races1,5157.83%
Other race1,0085.21%
White8334.31%
Native American1490.77%
Black or African American310.16%
Race
Population ↓
Percentage (of total)
White13,77071.18%
Black or African American7884.07%
Asian5923.06%
Two or more races5072.62%
Other race1350.7%
Native American160.08%

Holtsville Marital Status

Economics and Income Statistics

Holtsville 's average per capita income is $68,946. Household income levels show a median of $133,679. The poverty rate stands at 4.13%.

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$166,164-
Families$150,729$171,514
Households$133,679$155,551
Non Families$69,018$82,285

$68,946

Average Income

$133,679

Median Household Income

4.13%

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)