Zip Code 01561 — South Lancaster, MA
01561 is a ZIP Code associated with South Lancaster, MA, located within Worcester. The postal region supports an estimated population of Data Pending residents across Data Pending housing units, with a population density of Data Pending people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.445810, -71.688450)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 01561 |
| Primary City | South Lancaster |
| State / Province | MA |
| County | Worcester |
| Total Population | Data Pending |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | Data Pending people/sq mi |
| Timezone | America/New_York |
How 01561 Compares
| Metric | ZIP 01561 | Worcester County | MA State Average |
|---|
| Population | Data Pending | 867,539 | 7,043,978 |
| Median Income | Data Pending | N/A | N/A |
| Population Density | Data Pending /sq mi | -- | -- |
Nearby ZIP Codes
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 →