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ZipCityLookup
City Profile

Islip, New York

Population: 18,418 · 1 ZIP code

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
18,418
People
Median age
43.9
Housing
Total households
6,036
Income
Median household income
$120,909
Housing
Total housing units
6,388
Employment
Employment rate
60.6%
Education
Bachelor’s degree or higher
34.3%
Healthcare
Insured population
97%
City details
Local time 02:07:47(ET)
LocationIslip, NY
Population (ZIP areas)14,790(sum of local ZIP code populations)
Total ZIP codes1total
ZIP codes (by type)
1 Standard
CountySuffolk
Area code
631934
TimezoneEastern Time (ET)
Coordinates40.7304856, -73.2139239
Land area4 sq miles(10,272,046 m²)

Map of Islip, New York with ZIP codes

Map of Islip, New York and ZIP codes

ZIP Codes in Islip

Explore the ZIP codes that make up Islip. Analyze key demographics and population stats for the region using the comprehensive table below.

ZIPType
Median incomeHousehold
Population (ZIP)
11751Standard$116,55914,790

— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP type legend

  • Standard: residential and business delivery areas
  • PO BOX: primarily post office boxes; population may be unavailable
  • Unique: high-volume organizations (universities, agencies, etc.)

Nearby cities

Other cities near Islip, NY.

East Islip, NYBay Shore, NYBrightwaters, NYIslip Terrace, NYGreat River, NYCentral Islip, NYBrentwood, NYWest Islip, NY

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