Zip Code 01431 — Ashby, MA

ZIP Code 01431 is associated with Ashby, MA, in Middlesex County. The listed population estimate is 3,211; estimated density is 52.4 people per square mile. Among records with population estimates, it ranks #77 of 81 in Middlesex County and #388 of 532 in MA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.676520, -71.823220)

Data MetricLocal Statistic
Postal / Zip Code01431
Primary CityAshby
State / ProvinceMA
CountyMiddlesex
Total Population3,211
Population Density52.4 people/sq mi
TimezoneAmerica/New_York

How 01431 Compares

MetricZIP 01431Middlesex County recordsMA records
Population estimate3,2111,629,277 (sum)7,043,978 (sum)
Population Density52.4 /sq mi----
County population rank#77 of 81----
State population rank#388 of 532----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in MA

ZIP CodeCityDistancePopulation estimate
ZIP 01474West Townsend3.7 mi2,280
ZIP 01430Ashburnham5.2 mi6,481
ZIP 01420Fitchburg6.3 mi41,839
ZIP 01469Townsend6.7 mi6,820
ZIP 01462Lunenburg7.9 mi11,919

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 →