Massachusetts Norfolk and Middlesex District

State Legislative District Profile (Upper Chamber)

Overview

District ID
ma-sd-d17
State
Massachusetts
Chamber
Upper chamber (state senate)
District Code
D17
Land Area
34.6 sq mi
Water Area
0.91 sq mi

Boundary

Boundary of Massachusetts Norfolk and 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 County17.83 sq mi51.5%2.2%
Norfolk County16.78 sq mi48.5%4.2%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Newton city17.83 sq mi51.5%100.0%
Wellesley CDP10.02 sq mi29.0%100.0%
Brookline CDP6.76 sq mi19.5%100.0%

Showing all 3 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 4159,47787.8%20.4%80.4%
MA District 522,18712.2%2.8%19.6%

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

Voters

Registered Voters
122,007
Active Voters
92,520 (75.8%)

Party Registration

PartyVotersShare
Democratic43,06835.3%
Republican<10—
Unaffiliated00.0%
Other parties72,86559.7%
No party recorded<10—

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202636,388 (29.8%)0 (0.0%)0 (0.0%)
2023–202490,933 (74.5%)29,610 (24.3%)9,461 (7.8%)
2021–202270,184 (57.5%)24,146 (19.8%)2,861 (2.3%)
2019–202082,749 (67.8%)56,800 (46.6%)5,469 (4.5%)
2017–201866,010 (54.1%)21,894 (17.9%)3,309 (2.7%)
2015–201667,356 (55.2%)32,849 (26.9%)9,146 (7.5%)
2013–201448,288 (39.6%)15,888 (13.0%)1,672 (1.4%)
2011–201256,563 (46.4%)10,650 (8.7%)5,471 (4.5%)

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
182,657 (± 81)
Median Age
38.7
Median Household Income
$175,889 (± $5,819)
High School Graduate or Higher (age 25+)
97.6%
Bachelor's Degree or Higher (age 25+)
83.8%

Population by Age

GroupPeopleShare
Under 1837,41820.5%
18 to 64113,51662.1%
65 and over31,72317.4%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)10,1565.6%
White, not Hispanic122,01566.8%
Black, not Hispanic4,6242.5%
Asian, not Hispanic32,47417.8%
American Indian / Alaska Native, not Hispanic630.0%
Native Hawaiian / Pacific Islander, not Hispanic650.0%
Some other race, not Hispanic2,0991.1%
Two or more races, not Hispanic11,1616.1%

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
162,729
Citizen Voting Age Population (CVAP)
128,308

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic154,32794.8%
Hispanic8,4045.2%
White118,60972.9%
Black4,2092.6%
Asian22,67813.9%
American Indian / Alaska Native700.0%
Native Hawaiian / Pacific Islander640.0%
Two or More Races7810.5%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic122,29295.3%
Hispanic6,0174.7%
White98,52476.8%
Black4,2833.3%
Asian18,64214.5%
American Indian / Alaska Native3990.3%
Native Hawaiian / Pacific Islander660.1%
Two or More Races4470.3%

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