Massachusetts 25th Middlesex District

State Legislative District Profile (Lower Chamber)

Overview

District ID
ma-hd-083
State
Massachusetts
Chamber
Lower chamber
District Code
083
Land Area
1.73 sq mi
Water Area
0.04 sq mi

Boundary

Boundary of Massachusetts 25th Middlesex District

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Middlesex County1.73 sq mi100.0%0.2%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Cambridge city1.73 sq mi100.0%27.1%

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 538,90390.7%5.0%90.6%
MA District 73,9999.3%0.5%9.4%

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

Voters

Registered Voters
22,161
Active Voters
16,712 (75.4%)

Party Registration

PartyVotersShare
Democratic10,92249.3%
Republican<10—
Unaffiliated00.0%
Other parties10,88549.1%
No party recorded<10—

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20268,665 (39.1%)0 (0.0%)0 (0.0%)
2023–202416,376 (73.9%)7,897 (35.6%)840 (3.8%)
2021–202212,082 (54.5%)5,064 (22.9%)220 (1.0%)
2019–202013,298 (60.0%)10,507 (47.4%)254 (1.1%)
2017–201810,330 (46.6%)5,026 (22.7%)192 (0.9%)
2015–201610,106 (45.6%)6,465 (29.2%)532 (2.4%)
2013–20146,968 (31.4%)3,090 (13.9%)68 (0.3%)
2011–20128,070 (36.4%)2,314 (10.4%)330 (1.5%)

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
43,261 (± 1,525)
Median Age
28.7
Median Household Income
$126,260 (± $8,490)
High School Graduate or Higher (age 25+)
98.1%
Bachelor's Degree or Higher (age 25+)
86.8%

Population by Age

GroupPeopleShare
Under 184,45410.3%
18 to 6433,43077.3%
65 and over5,37712.4%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)3,6788.5%
White, not Hispanic25,49958.9%
Black, not Hispanic2,7006.2%
Asian, not Hispanic8,28919.2%
American Indian / Alaska Native, not Hispanic680.2%
Native Hawaiian / Pacific Islander, not Hispanic110.0%
Some other race, not Hispanic4151.0%
Two or more races, not Hispanic2,6016.0%

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
35,376
Citizen Voting Age Population (CVAP)
31,574

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic32,55092.0%
Hispanic2,8238.0%
White23,52266.5%
Black2,4466.9%
Asian4,83813.7%
American Indian / Alaska Native670.2%
Native Hawaiian / Pacific Islander110.0%
Two or More Races1680.5%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic29,28892.8%
Hispanic2,2857.2%
White21,51468.1%
Black2,5067.9%
Asian5,06516.0%
American Indian / Alaska Native1050.3%
Native Hawaiian / Pacific Islander90.0%
Two or More Races990.3%

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