Overview
- District ID
- ma-hd-122
- State
- Massachusetts
- Chamber
- Lower chamber
- District Code
- 122
- Land Area
- 73.5 sq mi
- Water Area
- 11.4 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Plymouth County | 73.53 sq mi | 100.0% | 11.2% |
Showing all 1 county
Places
Showing all 3 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 9 | 45,091 | 100.0% | 5.8% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 38,106
- Active Voters
- 31,909 (83.7%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 6,188 | 16.2% |
| Republican | <10 | — |
| Unaffiliated | 0 | 0.0% |
| Other parties | 27,420 | 72.0% |
| No party recorded | <10 | — |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 4,673 (12.3%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 28,373 (74.5%) | 6,045 (15.9%) | 7,300 (19.2%) |
| 2021–2022 | 20,936 (54.9%) | 4,533 (11.9%) | 3,240 (8.5%) |
| 2019–2020 | 26,698 (70.1%) | 10,898 (28.6%) | 4,880 (12.8%) |
| 2017–2018 | 20,567 (54.0%) | 3,393 (8.9%) | 3,258 (8.5%) |
| 2015–2016 | 23,131 (60.7%) | 6,952 (18.2%) | 6,011 (15.8%) |
| 2013–2014 | 15,588 (40.9%) | 2,699 (7.1%) | 1,704 (4.5%) |
| 2011–2012 | 20,233 (53.1%) | 2,161 (5.7%) | 3,252 (8.5%) |
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
- 45,355 (± 1,598)
- Median Age
- 46.3
- Median Household Income
- $101,011 (± $4,967)
- High School Graduate or Higher (age 25+)
- 95.1%
- Bachelor's Degree or Higher (age 25+)
- 41.4%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 8,086 | 17.8% |
| 18 to 64 | 26,732 | 58.9% |
| 65 and over | 10,537 | 23.2% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,226 | 2.7% |
| White, not Hispanic | 39,903 | 88.0% |
| Black, not Hispanic | 449 | 1.0% |
| Asian, not Hispanic | 196 | 0.4% |
| American Indian / Alaska Native, not Hispanic | 7 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 61 | 0.1% |
| Some other race, not Hispanic | 1,260 | 2.8% |
| Two or more races, not Hispanic | 2,253 | 5.0% |
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
- 43,619
- Citizen Voting Age Population (CVAP)
- 35,820
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 42,637 | 97.7% |
| Hispanic | 979 | 2.2% |
| White | 40,764 | 93.5% |
| Black | 416 | 1.0% |
| Asian | 166 | 0.4% |
| American Indian / Alaska Native | 9 | 0.0% |
| Native Hawaiian / Pacific Islander | 60 | 0.1% |
| Two or More Races | 26 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 35,197 | 98.3% |
| Hispanic | 624 | 1.7% |
| White | 33,834 | 94.5% |
| Black | 676 | 1.9% |
| Asian | 384 | 1.1% |
| American Indian / Alaska Native | 222 | 0.6% |
| Native Hawaiian / Pacific Islander | 61 | 0.2% |
| Two or More Races | 27 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
