Massachusetts First Worcester District

State Legislative District Profile (Upper Chamber)

Overview

District ID
ma-sd-d09
State
Massachusetts
Chamber
Upper chamber (state senate)
District Code
D09
Land Area
101.2 sq mi
Water Area
5.88 sq mi

Boundary

Boundary of Massachusetts First Worcester District

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Worcester County101.16 sq mi100.0%6.7%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Worcester city20.75 sq mi20.5%55.5%
Northborough CDP3.28 sq mi3.2%100.0%

Showing all 2 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 2158,61594.7%20.3%67.5%
MA District 38,8235.3%1.1%32.5%

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

Voters

Registered Voters
103,927
Active Voters
84,323 (81.1%)

Party Registration

PartyVotersShare
Democratic24,68023.7%
Republican7,4237.1%
Unaffiliated00.0%
Other parties71,82469.1%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202621,252 (20.4%)0 (0.0%)0 (0.0%)
2023–202464,501 (62.1%)14,985 (14.4%)9,998 (9.6%)
2021–202244,146 (42.5%)13,927 (13.4%)4,142 (4.0%)
2019–202061,107 (58.8%)30,133 (29.0%)6,075 (5.8%)
2017–201843,418 (41.8%)8,572 (8.2%)4,051 (3.9%)
2015–201649,761 (47.9%)18,527 (17.8%)8,649 (8.3%)
2013–201431,267 (30.1%)7,262 (7.0%)2,011 (1.9%)
2011–201241,087 (39.5%)3,804 (3.7%)4,595 (4.4%)

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
168,642 (± 2,530)
Median Age
36.1
Median Household Income
$78,519 (± $3,512)
High School Graduate or Higher (age 25+)
87.9%
Bachelor's Degree or Higher (age 25+)
42.8%

Population by Age

GroupPeopleShare
Under 1833,33019.8%
18 to 64109,73965.1%
65 and over25,57315.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)39,30623.3%
White, not Hispanic92,50854.9%
Black, not Hispanic14,6848.7%
Asian, not Hispanic11,5616.9%
American Indian / Alaska Native, not Hispanic1660.1%
Native Hawaiian / Pacific Islander, not Hispanic800.0%
Some other race, not Hispanic2,0041.2%
Two or more races, not Hispanic8,3334.9%

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
150,633
Citizen Voting Age Population (CVAP)
119,257

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic117,06177.7%
Hispanic33,57722.3%
White92,84961.6%
Black12,3968.2%
Asian7,1274.7%
American Indian / Alaska Native1680.1%
Native Hawaiian / Pacific Islander550.0%
Two or More Races5860.4%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic97,00781.3%
Hispanic22,25018.7%
White79,85767.0%
Black9,6318.1%
Asian6,6355.6%
American Indian / Alaska Native5440.5%
Native Hawaiian / Pacific Islander560.0%
Two or More Races3650.3%

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