In which county is ZIP code 01561 located?

ZIP 01561 is listed under Worcester County, MA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 01561: South Lancaster, MA

ZIP: 01561

County: Worcester County

Coordinates: 42.44350, -71.68610

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the South Lancaster, MA postal area 01561. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	South Lancaster
ZIP Code	01561
County	Worcester County
State	MA
Latitude / Longitude	42.44350, -71.68610
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 01561 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 01561 are listed as 42.44350 / -71.68610, useful for GPS and service checks in and around South Lancaster, MA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 01561 for mail delivery and general location reference in Worcester County, MA.

Some addresses near South Lancaster may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near South Lancaster within MA.

Frequently Asked Questions

What is the primary city for ZIP code 01561?

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

In which county is 01561 located?

ZIP code 01561 is situated within Worcester County, MA.

What are the coordinates for 01561?

The approximate center point is 42.44350 (Latitude) and -71.68610 (Longitude).

Is ZIP code 01561 active?

This page lists ZIP 01561 as Listed based on the latest refresh date shown above.

Does ZIP 01561 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