Overview
- District ID
- ma-sd-d10
- State
- Massachusetts
- Chamber
- Upper chamber (state senate)
- District Code
- D10
- Land Area
- 251.4 sq mi
- Water Area
- 7.48 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 2 counties
Places
Showing all 9 places
Overlapping Congressional Districts
| Congressional district | Population in both | Share of this district's population | Share of the congressional district's population | Share of this district's land |
|---|
| MA District 3 | 133,306 | 75.3% | 17.1% | 88.5% |
| MA District 2 | 43,782 | 24.7% | 5.6% | 11.5% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 132,957
- Active Voters
- 108,139 (81.3%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 23,206 | 17.5% |
| Republican | <10 | — |
| Unaffiliated | 0 | 0.0% |
| Other parties | 97,328 | 73.2% |
| No party recorded | <10 | — |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 21,235 (16.0%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 83,504 (62.8%) | 17,186 (12.9%) | 17,875 (13.4%) |
| 2021–2022 | 62,777 (47.2%) | 13,051 (9.8%) | 8,238 (6.2%) |
| 2019–2020 | 83,327 (62.7%) | 34,994 (26.3%) | 10,963 (8.2%) |
| 2017–2018 | 61,469 (46.2%) | 13,327 (10.0%) | 7,403 (5.6%) |
| 2015–2016 | 69,836 (52.5%) | 22,757 (17.1%) | 15,693 (11.8%) |
| 2013–2014 | 45,431 (34.2%) | 6,774 (5.1%) | 3,009 (2.3%) |
| 2011–2012 | 57,594 (43.3%) | 3,306 (2.5%) | 8,599 (6.5%) |
Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.
Browse the voter list for this district (premium access; sign-in required)
Source: Civitech voter file snapshot as of 12/07/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".
Demographics
- Total Population
- 177,145 (± 81)
- Median Age
- 41.2
- Median Household Income
- $100,006 (± $3,717)
- High School Graduate or Higher (age 25+)
- 91.9%
- Bachelor's Degree or Higher (age 25+)
- 41.5%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 37,026 | 20.9% |
| 18 to 64 | 110,356 | 62.3% |
| 65 and over | 29,763 | 16.8% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 28,149 | 15.9% |
| White, not Hispanic | 123,252 | 69.6% |
| Black, not Hispanic | 6,429 | 3.6% |
| Asian, not Hispanic | 9,560 | 5.4% |
| American Indian / Alaska Native, not Hispanic | 54 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 25 | 0.0% |
| Some other race, not Hispanic | 1,491 | 0.8% |
| Two or more races, not Hispanic | 8,185 | 4.6% |
Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.
Citizen Voting Age Population
- Total Citizen Population
- 167,012
- Citizen Voting Age Population (CVAP)
- 131,404
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 142,162 | 85.1% |
| Hispanic | 24,847 | 14.9% |
| White | 124,435 | 74.5% |
| Black | 5,555 | 3.3% |
| Asian | 7,617 | 4.6% |
| American Indian / Alaska Native | 53 | 0.0% |
| Native Hawaiian / Pacific Islander | 46 | 0.0% |
| Two or More Races | 253 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 115,105 | 87.6% |
| Hispanic | 16,293 | 12.4% |
| White | 102,929 | 78.3% |
| Black | 5,276 | 4.0% |
| Asian | 5,993 | 4.6% |
| American Indian / Alaska Native | 672 | 0.5% |
| Native Hawaiian / Pacific Islander | 42 | 0.0% |
| Two or More Races | 208 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
