South Lancaster CDP, Massachusetts Demographics & Population 2026

Population Overview

South Lancaster CDP is a small community located in Massachusetts. The total population is 1,991. It ranks as the 183rd most populous out of 248 cities and towns in Massachusetts.

Age Demographics

The median age in South Lancaster CDP is 38.9 years. This is 3% lower than the state median of 40.0 years. 12.4% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in South Lancaster CDP is $104,745. This is 3% higher than the state median of $101,341. Compared to the national median of $78,538, household income here is 33% higher. The poverty rate stands at 4.1%. This is 59% lower than the state poverty rate of 10.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 17.1%. This is 233% higher than the state rate of 5.1%. The median home value is $370,200. Housing costs are 30% lower than the state median of $525,800. The home-value-to-income ratio is 3.5x. 74.4% of occupied housing units are owner-occupied. This homeownership rate is 19% higher than the state average of 62.6%.

Race & Ethnicity

The largest racial or ethnic group in South Lancaster CDP is White (non-Hispanic), making up 84.1% of the population. Hispanic or Latino residents account for 10.9%. The Black or African American population (0.9%) is well below the state average of 6.5%.

Education

64.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 38% higher than the state rate of 46.6%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.5%.

Data Sources & Methodology

All demographic data for South Lancaster CDP, Massachusetts is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Massachusetts state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 248 Census-designated places in Massachusetts. For official data, visit data.census.gov.