Overview
- District ID
- ma-hd-109
- State
- Massachusetts
- Chamber
- Lower chamber
- District Code
- 109
- Land Area
- 33.2 sq mi
- Water Area
- 1.23 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 2 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 5 | 37,522 | 83.6% | 4.8% | 90.3% |
| MA District 4 | 7,363 | 16.4% | 0.9% | 9.7% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 30,134
- Active Voters
- 26,513 (88.0%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 7,362 | 24.4% |
| Republican | 2,846 | 9.4% |
| Unaffiliated | 0 | 0.0% |
| Other parties | 19,926 | 66.1% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 3,657 (12.1%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 23,519 (78.0%) | 6,789 (22.5%) | 4,385 (14.6%) |
| 2021–2022 | 18,508 (61.4%) | 5,093 (16.9%) | 1,395 (4.6%) |
| 2019–2020 | 21,705 (72.0%) | 12,231 (40.6%) | 1,924 (6.4%) |
| 2017–2018 | 16,702 (55.4%) | 3,358 (11.1%) | 1,145 (3.8%) |
| 2015–2016 | 17,604 (58.4%) | 6,437 (21.4%) | 3,866 (12.8%) |
| 2013–2014 | 12,917 (42.9%) | 2,992 (9.9%) | 791 (2.6%) |
| 2011–2012 | 15,094 (50.1%) | 2,098 (7.0%) | 2,408 (8.0%) |
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
- 45,516 (± 623)
- Median Age
- 39.4
- Median Household Income
- $250,001
- High School Graduate or Higher (age 25+)
- 98.8%
- Bachelor's Degree or Higher (age 25+)
- 85.6%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 11,432 | 25.1% |
| 18 to 64 | 26,531 | 58.3% |
| 65 and over | 7,553 | 16.6% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 3,474 | 7.6% |
| White, not Hispanic | 30,734 | 67.5% |
| Black, not Hispanic | 1,035 | 2.3% |
| Asian, not Hispanic | 7,105 | 15.6% |
| American Indian / Alaska Native, not Hispanic | 22 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 44 | 0.1% |
| Some other race, not Hispanic | 464 | 1.0% |
| Two or more races, not Hispanic | 2,638 | 5.8% |
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
- 41,976
- Citizen Voting Age Population (CVAP)
- 30,985
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 39,023 | 93.0% |
| Hispanic | 2,952 | 7.0% |
| White | 30,634 | 73.0% |
| Black | 914 | 2.2% |
| Asian | 5,367 | 12.8% |
| American Indian / Alaska Native | 23 | 0.1% |
| Native Hawaiian / Pacific Islander | 43 | 0.1% |
| Two or More Races | 125 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 29,245 | 94.4% |
| Hispanic | 1,750 | 5.6% |
| White | 23,474 | 75.8% |
| Black | 1,007 | 3.2% |
| Asian | 4,608 | 14.9% |
| American Indian / Alaska Native | 77 | 0.2% |
| Native Hawaiian / Pacific Islander | 46 | 0.1% |
| Two or More Races | 46 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
