In which county is ZIP code 01721 located?

ZIP 01721 is listed under Middlesex County, MA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 01721: Ashland, MA

ZIP: 01721

County: Middlesex County

Coordinates: 42.25390, -71.45830

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 01721 in Ashland, MA. We include verified county details for Middlesex County plus key geographic references used for mapping and logistics.

Primary City	Ashland
ZIP Code	01721
County	Middlesex County
State	MA
Latitude / Longitude	42.25390, -71.45830
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 01721 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 01721 is approximately 42.25390 (latitude) and -71.45830 (longitude). This location sits within Middlesex County, contributing to regional planning across MA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 01721 for mail delivery and general location reference in Middlesex County, MA.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Ashland.

Related ZIP Codes (Nearby)

Explore other postal codes near Ashland within MA.

Frequently Asked Questions

What is the primary city for ZIP code 01721?

The primary city for this ZIP code is Ashland, located in MA.

In which county is 01721 located?

ZIP code 01721 is situated within Middlesex County, MA.

What are the coordinates for 01721?

The approximate center point is 42.25390 (Latitude) and -71.45830 (Longitude).

Is ZIP code 01721 active?

This page lists ZIP 01721 as Listed based on the latest refresh date shown above.

Does ZIP 01721 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08