Massachusetts 1st Plymouth District

State Legislative District Profile (Lower Chamber)

Overview

District ID
ma-hd-111
State
Massachusetts
Chamber
Lower chamber
District Code
111
Land Area
87 sq mi
Water Area
30.2 sq mi

Boundary

Boundary of Massachusetts 1st Plymouth District

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Plymouth County86.94 sq mi100.0%13.2%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
The Pinehills CDP4.08 sq mi4.7%100.0%
Plymouth CDP0.21 sq mi0.2%9.6%

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 944,291100.0%5.7%100.0%

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

Voters

Registered Voters
39,952
Active Voters
31,199 (78.1%)

Party Registration

PartyVotersShare
Democratic6,87417.2%
Republican4,57811.5%
Unaffiliated00.0%
Other parties28,50071.3%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20266,019 (15.1%)0 (0.0%)0 (0.0%)
2023–202430,846 (77.2%)7,853 (19.7%)8,130 (20.3%)
2021–202222,715 (56.9%)5,534 (13.9%)3,364 (8.4%)
2019–202027,858 (69.7%)12,266 (30.7%)5,086 (12.7%)
2017–201821,181 (53.0%)3,847 (9.6%)3,336 (8.4%)
2015–201624,310 (60.8%)7,441 (18.6%)6,256 (15.7%)
2013–201416,502 (41.3%)3,200 (8.0%)1,962 (4.9%)
2011–201221,395 (53.6%)2,307 (5.8%)3,687 (9.2%)

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
46,755 (± 1,126)
Median Age
48.4
Median Household Income
$128,431 (± $5,255)
High School Graduate or Higher (age 25+)
96.5%
Bachelor's Degree or Higher (age 25+)
48.7%

Population by Age

GroupPeopleShare
Under 188,57118.3%
18 to 6425,77855.1%
65 and over12,40626.5%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)1,3923.0%
White, not Hispanic41,78389.4%
Black, not Hispanic6131.3%
Asian, not Hispanic2630.6%
American Indian / Alaska Native, not Hispanic390.1%
Native Hawaiian / Pacific Islander, not Hispanic00.0%
Some other race, not Hispanic3720.8%
Two or more races, not Hispanic2,2934.9%

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
46,105
Citizen Voting Age Population (CVAP)
37,585

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic44,73697.0%
Hispanic1,3673.0%
White42,63192.5%
Black7701.7%
Asian1680.4%
American Indian / Alaska Native380.1%
Native Hawaiian / Pacific Islander00.0%
Two or More Races1040.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic36,57197.3%
Hispanic1,0132.7%
White35,13493.5%
Black7982.1%
Asian3460.9%
American Indian / Alaska Native2610.7%
Native Hawaiian / Pacific Islander00.0%
Two or More Races620.2%

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