South Lancaster, MA · standard
ZIP Code 01561
Worcester County, Massachusetts - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 330
- 1,034/sq mi High-density area
National ZIP placement
South Lancaster has 330 residents, placing it in the 13th percentile of the 33,099 US ZIP codes with a reported population, at 1,034 people per square mile.
Source: USPS ZIP record + U.S. Census Bureau ZIP population. Rank compares ZIP 01561 against every US ZIP with a reported population; income/home-value percentiles are not available for this ZIP.
ZIP code 01561 is a sparsely populated ZIP (a standard USPS delivery area) in South Lancaster, Worcester County, Massachusetts, home to just 330 residents across 0.3 square miles, a density of 1,034 people per square mile, in the New York time zone.
Median household income is not on file for ZIP 01561, but per-capita income is -. The ACS does not publish both hardship measures for this ZIP, so the income figures above should be read without inferring a full local economic picture. The ACS does not report a median home value for this ZIP, so housing cost context is limited to the available tenure and rent fields.
Education and household profile round out the picture: - of adults hold a bachelor's degree or higher, the median age is -, and the average commute is -. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Worcester County, so 01561 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 01561, South Lancaster, MA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
330
Population
0.3
Area (sq mi)
1,034
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 01561?
-
Median Age
-
Male
-
Female
-
Foreign-Born
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
50housing units
50
Total Housing Units
0
Occupied Units
50
Vacant Units
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 13 business establishments in ZIP 01561, employing approximately 351 people with a combined annual payroll of $16,823,000.
13
Businesses
351
Employees
$16.8M
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Health care and social assistance | 3 | 23.1% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 01561 vs 01510 →
ZIP 01561 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 01453
Leominster (01453)
40,883 residents
- 01532 14,155
Northborough (01532)
14,155 residents
- 01510 13,606
Clinton (01510)
13,606 residents
- 01564 7,808
Sterling (01564)
7,808 residents
- 01523 7,582
Lancaster (01523)
7,582 residents
- 01464 7,211
Shirley (01464)
7,211 residents
- 01740 4,897
Bolton (01740)
4,897 residents
- 01505 4,355
Boylston (01505)
4,355 residents
- 01503 2,866
Berlin (01503)
2,866 residents
What this shows Among its immediate neighbors, ZIP 01561 ranks #0 by population - useful context the national average alone can't give.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 01510 | Clinton, MA | 13,606 | 2.2 mi |
| 01523 | Lancaster, MA | 7,582 | 2.5 mi |
| 01740 | Bolton, MA | 4,897 | 4.0 mi |
| 01564 | Sterling, MA | 7,808 | 4.5 mi |
| 01503 | Berlin, MA | 2,866 | 4.9 mi |
| 01467 | Still River, MA | 316 | 4.6 mi |
| 01505 | Boylston, MA | 4,355 | 6.3 mi |
| 01453 | Leominster, MA | 40,883 | 6.4 mi |
| 01532 | Northborough, MA | 14,155 | 8.6 mi |
| 01464 | Shirley, MA | 7,211 | 9.1 mi |
More ZIP Codes in Worcester County
Related Areas
Frequently Asked Questions
What county is ZIP code 01561 in?
ZIP code 01561 (South Lancaster) is located in Worcester County, Massachusetts. Worcester County contains multiple ZIP codes, see the full list at /counties/worcester-ma.
What is the population of ZIP code 01561?
ZIP code 01561 in South Lancaster, MA has a population of 330 according to the Census Bureau ACS 2023 estimates.
How many businesses are in ZIP code 01561?
ZIP code 01561 has 13 business establishments employing approximately 351 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
Related
Take this with you
What to do with ZIP 01561's numbers, next.
- See how ZIP 01561 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where South Lancaster, MA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.