ZIP CodeStandard
11742
Holtsville, NY
ZIP Code 11742 in Holtsville, NY has a population of 12,699 and a median household income of $125,162. Explore Census demographics, housing, and a map.
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
12,699
People
Median age
39.3
Housing
Total households
4,651
Income
Median household income
$125,162
Housing
Total housing units
4,725
Employment
Employment rate
68.2%
Education
Bachelor’s degree or higher
36.1%
Healthcare
Insured population
96.5%
Nearby ZIP codes
ZIP codes near 11742.
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS