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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2023

ZIP Codes for City of Old Westbury, NY

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Counties:NASSAU, NY
Area Code(s):516, 631, 718
Timezone(s):Eastern (GMT -05:00)
City Population:4,671 (More Details)
CBSA:New York-Newark-Jersey City, NY-NJ-PA
Congressional District(s):03
Land Area:285 square miles (county)
Water Area:169 square miles (county)

1 ZIP Code

Old Westbury, NY ZIP Code Boundaries

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Old Westbury, NY Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Old Westbury, NY Demographic Information *

Total population**4,671
Male population2,269
Female population2,402
Median age (years)24.4
White Population3,064
Black Population746
Indian Population12
Asian Population576
Hawaiian Population1
Hispanic Population316
Median age (Male)25.8
Median age (Female)23.3
Total households1,073
Family households (families)910
Average household size3.02
Average family size3.24
Total housing units1,172
* Demographic data is based on 2010 Census for the City of OLD WESTBURY.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  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],