Community & Data
Demographics
A Portrait of Mendon
Mendon sits in the Blackstone Valley of southern Worcester County, across about 18 square miles on the Mill River, and it has grown into a comfortable, mostly residential town of a little over 6,000 people. About nine in ten of its homes are owner-occupied, households average three people, the median household income is near 130,000 dollars, and about one resident in seven was born outside the United States. Figures below are from the U.S. Census Bureau and the Secretary of the Commonwealth. Follow the source links for the latest.
Key Figures
Sources: US Census Bureau (data.census.gov).
Population & Households
- Population (2020 Census): 6,228
- Households: 2,103
- Persons per household: 3.0
- Foreign-born: 11.1% of residents
- Age 65 and over: 14.9%
- Under 18: 24.1%
Race & Ethnicity
- White: 93.7%
- Asian: 0.4%
- Black or African American: 0.4%
- Hispanic or Latino (any race): 4.1%
- Two or more races: 3.8%
- Speak a language other than English at home: 14.0%
Economy & Housing
- Median household income: $129,837
- Poverty rate: 6.0%
- Median home value: $605,500
- Median gross rent: $1,947
- Homeownership: 91.1% of units
- In the labor force: 73.2%
Registered Voters
Massachusetts publishes voter-registration counts by town through the Secretary of the Commonwealth; the counts below are the state’s enrollment snapshot from February 1, 2025. As in most of the state, Mendon’s largest bloc by far is voters who choose no party at all.
- Total registered: 4,887
- Unenrolled (no party): 3,459 (70.78%)
- Democrats: 706 (14.45%)
- Republicans: 670 (13.71%)
Sources
See how Mendon fits into the broader Commonwealth.