| City: | South Lancaster, Massachusetts |
| City Alias: | S Lancaster |
| Names to Avoid: | So Lancaster |
| County: | Worcester County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 7:48:06 PM |
| Population: | 64 [See All] |
| Area Codes: | 351 / 978 |
| Classification: | PO Box |
| Coordinates: | 42.4444, -71.6876 |
| Land Area: | 0.038 sq mi |
| Quick Link: |
South Lancaster serves 64 residents across 28 households, with a median age of 52. The ZIP code covers just 0.038 square miles in Worcester County, making it one of Massachusetts' smallest postal zones.
The post office maintains 234 PO Boxes while the local population uses only 28. This adoption rate of 8.4 boxes per household shows the facility serves communities beyond South Lancaster's borders. Neighboring areas without their own carrier delivery rely on this location. The ZIP includes one street delivery point on Sawyer Street and operates one rural carrier route alongside PO Box service.
With only Sawyer Street recorded for carrier delivery, South Lancaster has one of the most limited street networks in the USPS database. The single-street configuration reflects the ZIP's role as a PO Box hub rather than a traditional street delivery zone.
ZIP Code 01561 has 64 residents and 28 households (average 2.29 persons per household). The median age is 52.0 years, significantly older than the state (39.9) and significantly older than the nation (38.8). The gender split is 51.6% male and 48.4% female, which is higher than the state male share (48.4%), making this a male-majority area. Largest groups are Hispanic or Latino (35.9%) and White (32.8%, much lower than the state average of 69.6% and well below the national average of 61.6%); Hispanic or Latino residents make up 35.9%, which is much higher than the state average (12.6%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 64Source: Census DHC |
| 2024 ACS Population Estimate: | 0Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 1,684.2 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 28Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 2.29Source: Census DHC |
| Average Family Size: | 4.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 359 | 293 | 174 | 155 | 141 | 249 | 243 | 294 | 209 | 102 | 69 | 0 | 0 | 0 |
| Decennial Census | 330 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 64 | -- | -- | -- | -- |
Median Age: 52
Male Median Age: 60.5
Female Median Age: 38.5
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 0 | 2 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 8 | 10 | 0 | 1 | 0 | 0 |
| Female | 2 | 3 | 0 | 7 | 0 | 1 | 2 | 1 | 0 | 5 | 3 | 3 | 3 | 0 | 0 | 1 | 0 | 0 |
| Total | 2 | 5 | 5 | 8 | 0 | 1 | 2 | 1 | 0 | 7 | 5 | 5 | 11 | 10 | 0 | 2 | 0 | 0 |
| White: | 21 | 30.00% |
| Black: | 8 | 11.43% |
| Hispanic:* | 23 | 32.86% |
| Asian: | 8 | 11.43% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 10 | 14.29% |
| Total: | 70 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 33 | 51.56% | 60.5 years |
| Females: | 31 | 48.44% | 38.5 years |
| Total: | 64 | 100% | 52.0 years |
| Native, born in the United States: | 0 | 0% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0% |
| Foreign born, naturalized U.S. citizen: | 0 | 0% |
| Foreign born, not a U.S. citizen: | 0 | 0% |
| Total Population: | 0 | 100% |
| Total Native Population: | 0 | 0% |
| Total Foreign-born Population: | 0 | 0% |
In 2024, the Median household income is $0, which is well under the national median ($78,538), is down $35,227 (100.0%) since 2011 and above its 2019 pre-pandemic level by $0. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $0 and female is $0, which is considerably lower than the national female median ($53,445), with a current gap of $0 that has narrowed from 2011 to 2024.
Explore More: Income Over Time Household Income Employment Status By Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $35,227 | $35,761 | $19,637 | $19,597 | $63,643 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Family Income | $36,960 | $36,902 | $0 | $0 | $63,643 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $18,914 | $19,048 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 0 | 0% |
| Unemployed: | 0 | 0% |
| Not In Labor Force: | 0 | 0% |
| Total: | 0 | 100% |
| Management, business, science, and arts: | 0 | 0% |
| Service: | 0 | 0% |
| Sales and Office: | 0 | 0% |
| Natural resources, construction, and maintenance: | 0 | 0% |
| Production, transportation, and material moving: | 0 | 0% |
| Total Civilian Employed Population: | 0 | 100% |
In 2024, the median home value is $0, which is much lower than the national median ($303,400), and above its 2019 pre-pandemic level by $0. The median gross rent is $0, which is well under the national median ($1,348), is down $596 (100.00%) since 2011 and above its 2019 pre-pandemic level by $0. Insufficient data for owner/renter mix. Insufficient data for vacancy rate.
Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Less than $500: | 0 | 0% |
| $500 to $999: | 0 | 0% |
| $1,000 to $1,499: | 0 | 0% |
| $1,500 to $1,999: | 0 | 0% |
| $2,000 to $2,499: | 0 | 0% |
| $2,500 to $2,999: | 0 | 0% |
| $3,000 or more: | 0 | 0% |
| No Rent: | 0 | 0% |
| Total: | 0 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $596 | $1,031 | $0 | $642 | $791 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 0 | 0% |
| Owner Occupied (free and clear, no mortgage): | 0 | 0% |
| Renter Occupied: | 0 | 0% |
| Total Occupied Housing Units: | 0 | 100% |
| Occupied Housing Units: | 0 | 0.00% |
| Vacant Housing Units (not graphed): | 50 | 100.00% |
| Total Housing Units: | 50 | 100% |
| Single-Family Units: | 0 | 0.00% |
| Multi-Family Units: | 50 | 100.00% |
| Other Units: | 0 | 0% |
| Total Housing Units: | 50 | 100% |
ZIP Code 01561 supports both business and residential activity. According to the Business Census (2024), there are 13 business establishments, employing about 351 people with an annual payroll of $16,823,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 985Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 13Source: CBP |
| 1st Quarter Payroll: | $3,837,000Source: CBP |
| Annual Payroll: | $16,823,000Source: CBP |
| # of Employees: | 351Source: CBP |
ZIP Code 01561 is located in Worcester County, Massachusetts, within the Worcester, MA Metropolitan Statistical Area (CBSA 49340) and Massachusetts's 3rd Congressional District. This Metro area has a population of 798,552 people, about 0.01% of whom live in ZIP Code 01561. It covers 0.038 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Worcester, MASource: Census |
| CBSA Number: | 49340Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 798,552Source: Census |
| MSA: | Source: Census |
| Land Area: | 0.038 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 03Source: USPS |
| Congressional Land Area: | 757.86 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2564460Source: Census |
| Place Name: | South Lancaster CDP; MassachusettsSource: Census |
We could not locate which school district 01561 belongs to, but we will update this once new district data is released. There are 0 public schools with a nearby mailing address, but we have located 5 public schools nearby. There are however 1 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.