ZIP code · South Lancaster · Massachusetts · United States
ZIP code 01561 — South Lancaster
ZIP code 01561 serves South Lancaster, Massachusetts.
- Postal code
- 01561Single source Value from one source, not cross-checked.
- City
- South Lancaster
- County
- Worcester
- State
- Massachusetts
- Country
- United States
- Coordinates
- 42.4435, -71.6861 — precision precise (locality)
View on OpenStreetMap - Population
- 0 (ZCTA, ACS 5-year)
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS). Data generated on 2026-08-21. Methodology · Report an error on this page