Community & Data
Medfield Demographics
A Portrait of Medfield
Medfield holds 12,799 people on 14.409 square miles of land, about 888 to the square mile, in 4,680 households that average 2.8 people each. More than one resident in four is under 18, which is a young profile for a Massachusetts town, and 86.1% of its housing units are owner-occupied. The figures below come 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), American Community Survey 5-year estimates 2020-2024.
Population & Households
- Population (2020 Census): 12,799
- Households: 4,680
- Persons per household: 2.8
- Foreign-born: 7.1% of residents
- Age 65 and over: 15.4%
- Under 18: 28.2%
- Land area: 14.409 square miles
- Veterans: 2.8%
Race & Ethnicity
- White: 86.8%
- Asian: 4.4%
- Black or African American: 2.2%
- Hispanic or Latino (any race): 3.4%
- Two or more races: 5.2%
- Speak a language other than English at home: 8.7%
Economy & Housing
- Median household income: $235,800
- Poverty rate: 2.1%
- Median home value: $911,100
- Median gross rent: $2,035
- Homeownership: 86.1% of units
- In the labor force: 70.4%
Registered Voters
Massachusetts publishes voter-registration counts by town through the Secretary of the Commonwealth. As in most of the state, Medfield’s largest bloc by far is voters who choose no party at all, and they can still vote in either party’s primary, which makes them the group every candidate has to win.
- Total registered: 9,836
- Unenrolled (no party): 7,312 (74.34%)
- Democrats: 1,648 (16.75%)
- Republicans: 832 (8.46%)
- Political designations: 44 (0.45%)
What the Ballot Decided in 2026
Two town-wide votes, five weeks apart, and both are certified by the Town Clerk. On March 30, 2026, 1,391 ballots filled ten different elected offices, from the Select Board to the Trust Fund Commissioner. On June 8, 2026, 2,428 ballots settled the Proposition 2 1/2 operating override for fiscal year 2027, 1,824 in favour and 604 against. The town’s results sheets report ballots by precinct and print no registered-voter count beside them, so those are the raw counts and no percentage is claimed here.
Sources
- U.S. Census Bureau QuickFacts, Medfield
- MA Secretary of the Commonwealth, Voter Registration
- Medfield Town Clerk, Election Results
- MA DESE, Medfield
- Secretary of the Commonwealth, Massachusetts Elections Calendar: August 22, 2026 was the last day to register to vote and change party enrollment for the September 1, 2026 state primary (G. L. c. 51, sections 26 and 28), which is the date this enrollment count is as of.
See how Medfield fits into the broader Commonwealth.