Massachusetts 5th Middlesex District

State Legislative District Profile (Lower Chamber)

Overview

District ID
ma-hd-063
State
Massachusetts
Chamber
Lower chamber
District Code
063
Land Area
18.6 sq mi
Water Area
1.35 sq mi

Boundary

Boundary of Massachusetts 5th 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 County18.57 sq mi100.0%2.3%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Cochituate CDP3.41 sq mi18.4%89.6%

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 543,778100.0%5.6%100.0%

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

Voters

Registered Voters
31,406
Active Voters
25,284 (80.5%)

Party Registration

PartyVotersShare
Democratic8,70327.7%
Republican2,2157.1%
Unaffiliated00.0%
Other parties20,48865.2%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20268,202 (26.1%)0 (0.0%)0 (0.0%)
2023–202424,736 (78.8%)7,917 (25.2%)3,833 (12.2%)
2021–202218,882 (60.1%)4,908 (15.6%)1,187 (3.8%)
2019–202023,030 (73.3%)13,619 (43.4%)1,967 (6.3%)
2017–201818,190 (57.9%)4,336 (13.8%)1,325 (4.2%)
2015–201619,217 (61.2%)8,342 (26.6%)3,418 (10.9%)
2013–201413,027 (41.5%)3,173 (10.1%)627 (2.0%)
2011–201216,542 (52.7%)1,607 (5.1%)2,086 (6.6%)

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
43,376 (± 470)
Median Age
43.6
Median Household Income
$146,913 (± $10,238)
High School Graduate or Higher (age 25+)
96.8%
Bachelor's Degree or Higher (age 25+)
71.5%

Population by Age

GroupPeopleShare
Under 189,33021.5%
18 to 6425,29058.3%
65 and over8,75620.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)1,9254.4%
White, not Hispanic32,78475.6%
Black, not Hispanic5591.3%
Asian, not Hispanic5,74913.3%
American Indian / Alaska Native, not Hispanic440.1%
Native Hawaiian / Pacific Islander, not Hispanic610.1%
Some other race, not Hispanic3980.9%
Two or more races, not Hispanic1,8564.3%

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
38,790
Citizen Voting Age Population (CVAP)
29,804

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic37,33296.2%
Hispanic1,4543.7%
White32,31983.3%
Black5091.3%
Asian3,5659.2%
American Indian / Alaska Native440.1%
Native Hawaiian / Pacific Islander280.1%
Two or More Races650.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic28,67596.2%
Hispanic1,1273.8%
White25,57785.8%
Black5131.7%
Asian2,4138.1%
American Indian / Alaska Native1070.4%
Native Hawaiian / Pacific Islander00.0%
Two or More Races660.2%

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