Overview
- District ID
- ma-sd-d13
- State
- Massachusetts
- Chamber
- Upper chamber (state senate)
- District Code
- D13
- Land Area
- 108.8 sq mi
- Water Area
- 5.14 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 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 5 | 109,368 | 62.5% | 14.0% | 36.8% |
| MA District 2 | 65,701 | 37.5% | 8.4% | 63.2% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 118,185
- Active Voters
- 92,613 (78.4%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 29,447 | 24.9% |
| Republican | 9,340 | 7.9% |
| Unaffiliated | 0 | 0.0% |
| Other parties | 79,398 | 67.2% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 22,063 (18.7%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 88,034 (74.5%) | 25,917 (21.9%) | 14,184 (12.0%) |
| 2021–2022 | 65,730 (55.6%) | 19,095 (16.2%) | 5,257 (4.4%) |
| 2019–2020 | 82,493 (69.8%) | 44,997 (38.1%) | 7,777 (6.6%) |
| 2017–2018 | 63,892 (54.1%) | 14,220 (12.0%) | 5,087 (4.3%) |
| 2015–2016 | 68,958 (58.3%) | 27,239 (23.0%) | 12,952 (11.0%) |
| 2013–2014 | 45,161 (38.2%) | 9,563 (8.1%) | 2,323 (2.0%) |
| 2011–2012 | 58,211 (49.3%) | 5,792 (4.9%) | 7,712 (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
- 176,033 (± 50)
- Median Age
- 40.3
- Median Household Income
- $132,521 (± $3,882)
- High School Graduate or Higher (age 25+)
- 93.1%
- Bachelor's Degree or Higher (age 25+)
- 60.4%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 39,130 | 22.2% |
| 18 to 64 | 107,580 | 61.1% |
| 65 and over | 29,323 | 16.7% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 19,100 | 10.9% |
| White, not Hispanic | 112,391 | 63.8% |
| Black, not Hispanic | 5,806 | 3.3% |
| Asian, not Hispanic | 19,181 | 10.9% |
| American Indian / Alaska Native, not Hispanic | 112 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 71 | 0.0% |
| Some other race, not Hispanic | 4,933 | 2.8% |
| Two or more races, not Hispanic | 14,439 | 8.2% |
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
- 150,468
- Citizen Voting Age Population (CVAP)
- 114,754
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 136,869 | 91.0% |
| Hispanic | 13,597 | 9.0% |
| White | 114,868 | 76.3% |
| Black | 5,553 | 3.7% |
| Asian | 11,987 | 8.0% |
| American Indian / Alaska Native | 118 | 0.1% |
| Native Hawaiian / Pacific Islander | 38 | 0.0% |
| Two or More Races | 403 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 106,336 | 92.7% |
| Hispanic | 8,416 | 7.3% |
| White | 92,579 | 80.7% |
| Black | 4,752 | 4.1% |
| Asian | 8,414 | 7.3% |
| American Indian / Alaska Native | 348 | 0.3% |
| Native Hawaiian / Pacific Islander | 8 | 0.0% |
| Two or More Races | 253 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
