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 2025 population of 19,568. Holtsville is currently declining at a rate of -0.05% annually but its population has increased by 5.35% since the most recent census, which recorded a population of 18,574 in 2020.

The average household income in Holtsville is $148,631 with a poverty rate of 3.4%.The median age in Holtsville is 39.7 years: 40 years for males, and 39.4 years for females.

19.6K
Total Population
2,753
Density (mi²)
-10 -0.05%
Growth

Holtsville Population

Holtsville Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Holtsville includes 79.71% White, 5.34% Black or African American, 4.3% other race, 3.57% Asian, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White15,34479.71%
Two or more races1,2006.23%
Black or African American1,0275.34%
Other race8274.3%
Asian6873.57%
Native American1650.86%

Holtsville Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Holtsville's average per capita income is $64,507. Household income levels show a median of $130,851. The poverty rate stands at 3.4%.

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$160,435-
Families$147,345$162,826
Households$130,851$148,631
Non Families$57,212$78,776

$64,507

Average Income

$130,851

Median Household Income

3.4%

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)