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zipcodes.pro — CITY/NY/ISLIP

Islip ZIP code, New York

The ZIP code for Islip, NY is 11751, and its area codes are 631 and 934.

USPS city name
1 ZIP code
Overlapping the city
2 more
Population
17,362
Area codes
631, 934

Mail addressed to Islip uses the ZIP code above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Islip in numbers

About 17,362 people live in Islip, in 6,036 households. The median household income is $120,909 a year, 41% above the New York median of $85,974 (US: $80,734). The median owner-occupied home is valued at $542,200 (28% above the New York median), and median gross rent is $2,235 a month. The median age is 43.9; 34.3% of adults 25 and over hold a bachelor's degree or higher (40.2% across New York); the average commute takes 28 minutes.

Population17,362Islip17,362
Households6,036Islip6,036
Median age43.9Islip43.9New York39.8US 38.9
Median household income$120,909Islip$120,909New York$85,974US $80,734
Median home value$542,200Islip$542,200New York$423,800US $332,700
Median gross rent$2,235Islip$2,235New York$1,621US $1,413
Bachelor's degree or higher34.3%Islip34.3%New York40.2%US 35.7%
Mean commute27.9 minIslip27.9 minNew York32.6 minUS 26.4 min
Population density3,656 / sq miIslip3,656 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Islip CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Islip

ZIP codes with the USPS city name Islip
ZIP City Type Population Median income Median home
11751 Islip , NY Standard 13,726 $116,559 $563,100

Other ZIP codes overlapping Islip

These ZIP codes cover part of Islip but are addressed as somewhere else.

ZIP codes overlapping Islip
ZIP City Type Population Median income Median home
11706 Bay Shore , NY Standard 68,976 $119,603 $494,300
11722 Central Islip , NY Standard 39,033 $114,049 $436,600

Map of Islip ZIP codes

11751

The ZIP codes of Islip, NY, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Islip

The nearest larger towns are Bay Shore (31,683 people, 1.8 mi), North Bay Shore (20,282 people, 3.2 mi) and Central Islip (38,373 people, 3.9 mi).

Towns near Islip
TownPopulationDistance
East Islip 13,573 1.5 mi
Bay Shore 31,683 1.8 mi
Islip Terrace 5,168 2.1 mi
Brightwaters 3,179 2.6 mi
West Bay Shore 4,208 3.0 mi
North Bay Shore 20,282 3.2 mi
North Great River 3,909 3.3 mi
Central Islip 38,373 3.9 mi
Brentwood 152,614 4.2 mi
Baywood 8,176 4.2 mi
Oakdale 7,115 4.3 mi
West Islip 26,865 4.6 mi
Bohemia 9,181 5.3 mi
North Babylon 17,963 5.7 mi

More nearby: every ZIP code in Suffolk County · New York ZIP codes

Cite this page

zipcodes.pro. “Islip, NY ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ny/islip

Underlying data is public domain or openly licensed — sources, vintages and licences.