In which county is ZIP code 01581 located?

ZIP 01581 is listed under Worcester County, MA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 01581: Westborough, MA

ZIP: 01581

County: Worcester County

Coordinates: 42.26790, -71.61760

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Westborough, MA postal area 01581. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Westborough
ZIP Code	01581
County	Worcester County
State	MA
Latitude / Longitude	42.26790, -71.61760
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 01581 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 01581 is approximately 42.26790 (latitude) and -71.61760 (longitude). This location sits within Worcester County, contributing to regional planning across MA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 01581 for mail delivery and general location reference in Worcester County, MA.

This ZIP may extend beyond the city core into nearby communities within Worcester County.

Related ZIP Codes (Nearby)

Explore other postal codes near Westborough within MA.

Frequently Asked Questions

What is the primary city for ZIP code 01581?

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

In which county is 01581 located?

ZIP code 01581 is situated within Worcester County, MA.

What are the coordinates for 01581?

The approximate center point is 42.26790 (Latitude) and -71.61760 (Longitude).

Is ZIP code 01581 active?

This page lists ZIP 01581 as Listed based on the latest refresh date shown above.

Does ZIP 01581 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