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ZIP Code Database - Facts & Stats

Data Last Updated: February 1, 2023

ZIP Codes for City of Mamaroneck, NY

Mamaroneck, NY Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 10543StandardWestchester20,135

Timezone(s):Eastern (GMT -05:00)
Population:18,929 (More Details)
Male Population:9,227
Female Population:9,702
Median Age:40
ZIP Codes:1
Area Codes:1
Total Area:500 square miles (county)
Land Area:431 square miles (county)
Water Area:69 square miles (county)

Mamaroneck, NY Demographic Information *

Total population18,929
Male population9,227
Female population9,702
Median age (years)40
White Population14,532
Black Population767
Indian Population49
Asian Population926
Hawaiian Population11
Hispanic Population4,602
Median age (Male)37.4
Median age (Female)41.8
Total households6,998
Family households (families)4,707
Average household size2.65
Average family size3.23
Total housing units7,512
* Demographic data is based on 2010 Census. Products


  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],