Find a Business Near: Holtsville, NY

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Find a Business Near: Holtsville, NY

Holtsville Population: 19,689

Total Males: 9,812
Total Females: 9,877
Median Household Income: $86,648
Total Households: 6,460

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Brief Information About Holtsville

Holtsville is a hamlet and census-designated place located in Suffolk County, New York, United States. Holtsville lies mainly in the Town of Brookhaven, while the southwest portion is in the Town of Islip. An IRS Processing Center is located in Holtsville. Main attractions include Harold H. Malkmes Wildlife Education and Ecology Center, a public zoo, and an ecological park located on the site of a previous landfill. Holtsville's zip codes are 00501, 00544, and 11742.