Central Islip, NY ZIP Code
Central Islip, New York has one ZIP code: .
Mail addressed to Central Islip covers nearby places too.
Where the 11722 ZIP code reaches
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: the Central Islip Census outline.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Central Islip
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
ZIP codes from nearby towns that reach into Central Islip
- 11752, mailing town Islip Terrace, covers 6 percent of Central Islip
Why your mail may say Central Islip when you live outside it
A letter addressed to Central Islip can go to a home outside the town, because ZIP areas follow delivery routes, not town lines.
The reverse happens too: parts of Central Islip use 11752, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Suffolk County property records show which city you are in.
Central Islip ZIP code questions
What is the main ZIP code for Central Islip?
11722, the ZIP code of the main Central Islip post office at 110 E Suffolk Ave.
What county is Central Islip in?
Suffolk County.
ZIP codes for towns near Central Islip
More towns near Central Islip: Town of Babylon, Huntington Station, Town of Huntington, Coram, Town of Brookhaven, Town of Oyster Bay, Levittown, Hicksville, East Meadow.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections