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ZIP Code Database - Facts & Stats

Data Last Updated: November 1, 2022

ZIP Codes for City of Ayer, MA

Ayer, MA Covers 2 ZIP Codes

ZIP CodeTypeCountyPopulation
ZIP Code 01432StandardMiddlesex7,089
ZIP Code 01434StandardMiddlesex1,795

Timezone(s):Eastern (GMT -05:00)
Population:2,868 (More Details)
Male Population:1,419
Female Population:1,449
Median Age:40
ZIP Codes:2
Area Codes:1
Total Area:847 square miles (county)
Land Area:818 square miles (county)
Water Area:29 square miles (county)

Ayer, MA Demographic Information *

Total population2,868
Male population1,419
Female population1,449
Median age (years)39.9
White Population2,484
Black Population130
Indian Population14
Asian Population73
Hawaiian Population9
Hispanic Population192
Median age (Male)38.2
Median age (Female)41.2
Total households1,338
Family households (families)672
Average household size2.14
Average family size2.98
Total housing units1,523
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 11/1/2022],
  2. Internal Data Creation [Last Updated: 11/1/2022],
  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],