Massachusetts 15th Norfolk District

State Legislative District Profile (Lower Chamber)

Overview

District ID
ma-hd-110
State
Massachusetts
Chamber
Lower chamber
District Code
110
Land Area
2.18 sq mi
Water Area
0.02 sq mi

Boundary

Boundary of Massachusetts 15th Norfolk District

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Norfolk County2.18 sq mi100.0%0.5%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Brookline CDP2.18 sq mi100.0%32.2%

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 445,747100.0%5.9%100.0%

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

Voters

Registered Voters
29,526
Active Voters
18,192 (61.6%)

Party Registration

PartyVotersShare
Democratic12,37941.9%
Republican<10—
Unaffiliated00.0%
Other parties16,26455.1%
No party recorded<10—

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20267,101 (24.0%)0 (0.0%)0 (0.0%)
2023–202419,733 (66.8%)6,575 (22.3%)1,358 (4.6%)
2021–202214,695 (49.8%)7,035 (23.8%)416 (1.4%)
2019–202017,623 (59.7%)12,776 (43.3%)658 (2.2%)
2017–201813,826 (46.8%)6,000 (20.3%)364 (1.2%)
2015–201614,000 (47.4%)7,653 (25.9%)1,162 (3.9%)
2013–20149,150 (31.0%)3,674 (12.4%)183 (0.6%)
2011–201211,062 (37.5%)2,526 (8.6%)712 (2.4%)

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
45,306 (± 1,160)
Median Age
34.4
Median Household Income
$135,380 (± $7,646)
High School Graduate or Higher (age 25+)
97.4%
Bachelor's Degree or Higher (age 25+)
85.7%

Population by Age

GroupPeopleShare
Under 187,14815.8%
18 to 6431,19568.9%
65 and over6,96315.4%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)2,8126.2%
White, not Hispanic28,71863.4%
Black, not Hispanic1,2212.7%
Asian, not Hispanic9,18220.3%
American Indian / Alaska Native, not Hispanic90.0%
Native Hawaiian / Pacific Islander, not Hispanic00.0%
Some other race, not Hispanic3440.8%
Two or more races, not Hispanic3,0206.7%

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
37,720
Citizen Voting Age Population (CVAP)
31,766

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic35,34093.7%
Hispanic2,3796.3%
White26,95171.5%
Black1,0972.9%
Asian5,02813.3%
American Indian / Alaska Native90.0%
Native Hawaiian / Pacific Islander00.0%
Two or More Races2020.5%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic29,90194.1%
Hispanic1,8605.9%
White23,77774.9%
Black1,2393.9%
Asian4,58614.4%
American Indian / Alaska Native1220.4%
Native Hawaiian / Pacific Islander30.0%
Two or More Races1930.6%

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