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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Central Islip, NY

Central Islip, NY Covers 2 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 11722StandardSuffolk35,177631 / 516 / 934
ZIP Code 11749StandardSuffolk3,345631 / 516 / 934

Timezone(s):Eastern (GMT -05:00)
Counties:SUFFOLK, NY
Population:34,450 (More Details)
Male Population:17,096
Female Population:17,354
Median Age:33
ZIP Codes:2
Area Codes:3
Total Area:2,373 square miles (county)
Land Area:912 square miles (county)
Water Area:1,461 square miles (county)

Central Islip, NY Demographic Information *

Total population34,450
Male population17,096
Female population17,354
Median age (years)32.6
White Population15,037
Black Population8,600
Indian Population303
Asian Population1,158
Hawaiian Population13
Hispanic Population17,938
Median age (Male)31.8
Median age (Female)33.5
Total households9,365
Family households (families)6,928
Average household size3.66
Average family size3.97
Total housing units9,961
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],