Demographics in Holtsville, NY
Population, age, race, ethnicity, and household statistics — 2023 ACS Data
Where is Holtsville?
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Population
Source: U.S. Census Bureau ACS (2023)Total Population
19,250
Male
9,511
49.4%
Female
9,739
50.6%
Median Age
39.7
Race & Ethnicity
Source: U.S. Census Bureau ACS (2023)White79.7%
Black5.3%
Hispanic15.9%
Asian3.6%
Two or More6.2%
Other4.3%
Education & Household
Source: U.S. Census Bureau ACS (2023)Bachelor's or Higher
23.8%
High School or Higher
42.6%
Foreign Born
12.2%
Veterans
3.0%
Married
43.1%
Avg Household Size
3.0
Marital Status by Age
Source: U.S. Census Bureau ACS (2023)Holtsville, NY has a population of 19,250 with a median age of 39.7. The racial makeup is 79.7% White, 15.9% Hispanic, 5.3% Black, 3.6% Asian. About 23.8% of residents hold a bachelor's degree or higher. The foreign-born population is 12.2%.