South Lancaster, MA 01561 ZIP Code Profile

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South Lancaster, MA

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ZIP Code 01561: Basic Data & USPS Preferred City Name

Preferred Name, USPS
South Lancaster, MA 01561

Acceptable Alternative
S Lancaster, MA 01561

Not Acceptable, USPS
So Lancaster, MA 01561

  • ZIP Code Type: PO BOX
  • County: Worcester County
  • Centroid: Latitude 42.441, Longitude -71.69
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 94
  • PO Box Addresses: 341
  • Residential Addresses: 1
    • Multi-Family Addresses: 0
    • Single Family Addresses: 1

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

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01561 ZIP Code Map

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South Lancaster, MA 01561 Data & Demographics (As of July 1, 2017)


Total Population 191
Daytime Population: Workers 110
Daytime Population: Residents 89
Total Daytime Population (TDP) 199
Ratio TDP/Total Population1 1.04
Population in Households 181
Population in Familes 147
Population in Group Qrtrs 10
Population Density2 5,520
Diversity Index3 57


Median Household Income $79,721
Average Household Income $100,036
Per Capita Income $17,319


Total Housing Units 38 (100%)
Owner Occupied HU 19 (50.0%)
Renter Occupied HU 12 (31.6%)
Vacant Housing Units 7 (18.4%)
Median Home Value $295,000
Average Home Value $369,737


Total Households 31
Average Household Size 5.84
Family Households 21
Average Family Size 7
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.79% 1.03%
Households 0.92% 1.26%
Families 1.39% 0.93%
Median Household Income   1.45%
Per Capita Income   2.15%

South Lancaster, MA 01561 - Peer Comparisons by Rank and Percentile

The table below compares 01561 to the other 521 ZIP Codes in Massachusetts by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 497 5th
Population Density # 83 84th
Diversity Index # 80 85th
Median Household Income # 228 56th
Per Capita Income # 507 3rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Massachusetts Census Data Comparison Tool.

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