Massachusetts Fifth Middlesex District

State Legislative District Profile (Upper Chamber)

Overview

District ID
ma-sd-d23
State
Massachusetts
Chamber
Upper chamber (state senate)
District Code
D23
Land Area
35.6 sq mi
Water Area
1.49 sq mi

Boundary

Boundary of Massachusetts Fifth 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 County35.61 sq mi100.0%4.4%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Reading CDP9.98 sq mi28.0%100.0%
Wakefield CDP7.39 sq mi20.8%100.0%
Stoneham CDP6.01 sq mi16.9%100.0%
Malden city5.04 sq mi14.2%100.0%
Melrose city4.68 sq mi13.2%100.0%
Winchester CDP2.50 sq mi7.0%41.4%

Showing all 6 places

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 5131,03471.4%16.8%51.2%
MA District 652,60828.6%6.7%48.8%

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

Voters

Registered Voters
127,878
Active Voters
98,914 (77.4%)

Party Registration

PartyVotersShare
Democratic33,95126.5%
Republican<10—
Unaffiliated00.0%
Other parties84,81166.3%
No party recorded<10—

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202633,953 (26.6%)0 (0.0%)0 (0.0%)
2023–202492,752 (72.5%)25,512 (20.0%)16,546 (12.9%)
2021–202269,167 (54.1%)20,454 (16.0%)6,334 (5.0%)
2019–202088,490 (69.2%)47,530 (37.2%)9,774 (7.6%)
2017–201866,659 (52.1%)17,014 (13.3%)6,131 (4.8%)
2015–201672,864 (57.0%)29,416 (23.0%)14,369 (11.2%)
2013–201449,701 (38.9%)13,216 (10.3%)2,722 (2.1%)
2011–201260,818 (47.6%)7,483 (5.9%)7,955 (6.2%)

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
184,747 (± 690)
Median Age
40.1
Median Household Income
$122,318 (± $4,801)
High School Graduate or Higher (age 25+)
92.4%
Bachelor's Degree or Higher (age 25+)
56.3%

Population by Age

GroupPeopleShare
Under 1837,69220.4%
18 to 64115,21362.4%
65 and over31,84217.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)11,6946.3%
White, not Hispanic120,98765.5%
Black, not Hispanic10,2225.5%
Asian, not Hispanic28,58515.5%
American Indian / Alaska Native, not Hispanic560.0%
Native Hawaiian / Pacific Islander, not Hispanic10.0%
Some other race, not Hispanic2,2331.2%
Two or more races, not Hispanic10,9695.9%

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
164,703
Citizen Voting Age Population (CVAP)
128,825

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic154,93894.1%
Hispanic9,7685.9%
White122,20074.2%
Black8,7875.3%
Asian19,49811.8%
American Indian / Alaska Native560.0%
Native Hawaiian / Pacific Islander70.0%
Two or More Races4390.3%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic122,30094.9%
Hispanic6,5245.1%
White99,05876.9%
Black7,3665.7%
Asian15,34411.9%
American Indian / Alaska Native2940.2%
Native Hawaiian / Pacific Islander60.0%
Two or More Races2790.2%

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