Community & Data
Dedham Demographics
A Portrait of Dedham
Dedham is a town of 25,364 people on the Charles River at Boston’s southwestern edge, and the numbers describe a settled place: about seven in ten homes are owner occupied, households average 2.3 people, and one resident in five is 65 or older. One in seven residents was born outside the United States, and more than one in six speaks a language other than English at home. 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): 25,364
- Households: 10,530
- Persons per household: 2.3
- Foreign-born: 14.3% of residents
- Age 65 and over: 21.9%
- Under 18: 18.6%
Race & Ethnicity
- White: 80.0%
- Asian: 2.8%
- Black or African American: 6.6%
- Hispanic or Latino (any race): 7.9%
- Two or more races: 8.4%
- Speak a language other than English at home: 18.1%
Economy & Housing
- Median household income: $128,955
- Poverty rate: 5.6%
- Median home value: $661,800
- Median gross rent: $2,042
- Homeownership: 73.4% of units
- In the labor force: 70.2%
Registered Voters
Massachusetts publishes voter-registration counts by town through the Secretary of the Commonwealth. As in most of the state, Dedham’s largest bloc by far is voters who choose no party at all, and the unenrolled can still vote in either party’s primary.
- Total registered: 19,094
- Unenrolled (no party): 12,283 (64.33%)
- Democrats: 5,435 (28.46%)
- Republicans: 1,241 (6.50%)
- Political designations: 135 (0.71%)
See how Dedham fits into the broader Commonwealth.
MassCivics last checked this page on October 15, 2026.
Sources
- Population and demographics: US Census Bureau, Census profile of Dedham town, Norfolk County (American Community Survey 5-year estimates 2020-2024 and the 2020 Census), as of April 1, 2020 and December 31, 2024.
- Schools and districts: Massachusetts DESE, Dedham Public Schools.
- Elections and voter enrollment: Secretary of the Commonwealth, Massachusetts Elections Calendar.
- Elections and voter enrollment: Secretary of the Commonwealth, Voter Registration.
- Elections and voter enrollment: Secretary of the Commonwealth (spreadsheet), registration and party enrollment by municipality, 2026 state primary, as of August 22, 2026.