Home > MA > Middlesex County > Ayer > Zip 01432

Zip Code 01432 — Ayer, MA

01432 is a ZIP Code associated with Ayer, MA, located within Middlesex. The postal region supports an estimated population of 8,521 residents across Data Pending housing units, with a population density of 386.2 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (42.563510, -71.570590)

Data Metric	Local Statistic
Postal / Zip Code	01432
Primary City	Ayer
State / Province	MA
County	Middlesex
Total Population	8,521
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	386.2 people/sq mi
Timezone	America/New_York

How 01432 Compares

Metric	ZIP 01432	Middlesex County	MA State Average
Population	8,521	1,629,277	7,043,978
Median Income	Data Pending	N/A	N/A
Population Density	386.2 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 01434	Devens	3.2 mi	1,564	N/A
Zip 01450	Groton	3.5 mi	11,356	N/A
Zip 01464	Shirley	4.0 mi	6,976	N/A
Zip 01451	Harvard	4.4 mi	5,487	N/A
Zip 01460	Littleton	4.6 mi	10,280	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →