South Lancaster, MA population, income and ZIP codes

South Lancaster CDP is a small town in Massachusetts, with 1,991 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #183 of 248 ranked by population — larger than 26% of them. The median age here is 38.9 years against 39.1 nationally, a slightly younger profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in South Lancaster CDP earn a median of $104,745 a year, 33.4% above the national figure of $78,538 and 5% above the $99,537 median for the 222 Massachusetts cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 4.1% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in South Lancaster CDP is valued at $370,200, 22% above the national figure and 26% below the $497,400 peer median, while median gross rent runs not published a month. The home-price-to-income ratio works out to 3.5×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 74.4% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

The Census withheld gross rent for South Lancaster CDP because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.