Massachusetts 5th Suffolk District

State Legislative District Profile (Lower Chamber)

Overview

District ID
ma-hd-127
State
Massachusetts
Chamber
Lower chamber
District Code
127
Land Area
2.59 sq mi
Water Area
0.01 sq mi

Boundary

Boundary of Massachusetts 5th Suffolk District

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Suffolk County2.59 sq mi100.0%4.5%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Boston city2.59 sq mi100.0%5.4%

Showing all 1 place

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
MA District 743,56994.8%5.6%96.0%
MA District 82,4145.2%0.3%4.0%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
28,327
Active Voters
25,582 (90.3%)

Party Registration

PartyVotersShare
Democratic11,64041.1%
Republican6552.3%
Unaffiliated00.0%
Other parties16,03256.6%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20265,407 (19.1%)0 (0.0%)0 (0.0%)
2023–202413,159 (46.5%)3,418 (12.1%)282 (1.0%)
2021–20228,872 (31.3%)3,772 (13.3%)109 (0.4%)
2019–202013,647 (48.2%)7,437 (26.3%)242 (0.9%)
2017–20189,226 (32.6%)4,343 (15.3%)104 (0.4%)
2015–201611,092 (39.2%)5,337 (18.8%)183 (0.6%)
2013–20147,293 (25.7%)2,143 (7.6%)76 (0.3%)
2011–20129,517 (33.6%)1,655 (5.8%)95 (0.3%)

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
44,653 (± 2,269)
Median Age
35.3
Median Household Income
$56,319 (± $4,726)
High School Graduate or Higher (age 25+)
76.2%
Bachelor's Degree or Higher (age 25+)
21.4%

Population by Age

GroupPeopleShare
Under 1810,94324.5%
18 to 6427,82262.3%
65 and over5,88813.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)14,45332.4%
White, not Hispanic3,2537.3%
Black, not Hispanic16,67437.3%
Asian, not Hispanic1,4503.2%
American Indian / Alaska Native, not Hispanic2010.5%
Native Hawaiian / Pacific Islander, not Hispanic00.0%
Some other race, not Hispanic1,6933.8%
Two or more races, not Hispanic6,92915.5%

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
37,430
Citizen Voting Age Population (CVAP)
27,795

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic26,75771.5%
Hispanic10,67828.5%
White3,3649.0%
Black20,64855.2%
Asian1,1093.0%
American Indian / Alaska Native2010.5%
Native Hawaiian / Pacific Islander00.0%
Two or More Races6851.8%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic21,36576.9%
Hispanic6,43123.1%
White2,99610.8%
Black16,92660.9%
Asian7982.9%
American Indian / Alaska Native3681.3%
Native Hawaiian / Pacific Islander10.0%
Two or More Races4011.4%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).