Home > MA > Middlesex County > Acton > Zip 01720

Zip Code 01720 — Acton, MA

01720 is a ZIP Code associated with Acton, MA, located within Middlesex. The postal region supports an estimated population of 23,526 residents across Data Pending housing units, with a population density of 462.9 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (42.483970, -71.438090)

Data Metric	Local Statistic
Postal / Zip Code	01720
Primary City	Acton
State / Province	MA
County	Middlesex
Total Population	23,526
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	462.9 people/sq mi
Timezone	America/New_York

How 01720 Compares

Metric	ZIP 01720	Middlesex County	MA State Average
Population	23,526	1,629,277	7,043,978
Median Income	Data Pending	N/A	N/A
Population Density	462.9 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 01718	Acton	2.6 mi	404	N/A
Zip 01742	Concord	4.0 mi	18,448	N/A
Zip 01719	Boxborough	4.1 mi	5,496	N/A
Zip 01754	Maynard	4.1 mi	10,712	N/A
Zip 01460	Littleton	4.4 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 →