Massachusetts 4th Hampden District

State Legislative District Profile (Lower Chamber)

Overview

District ID
ma-hd-047
State
Massachusetts
Chamber
Lower chamber
District Code
047
Land Area
71.7 sq mi
Water Area
1.84 sq mi

Boundary

Boundary of Massachusetts 4th Hampden District

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Hampden County43.51 sq mi60.7%7.1%
Hampshire County28.15 sq mi39.3%5.3%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Westfield city43.51 sq mi60.7%94.1%

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 143,505100.0%5.6%100.0%

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

Voters

Registered Voters
32,254
Active Voters
25,099 (77.8%)

Party Registration

PartyVotersShare
Democratic5,19516.1%
Republican4,52014.0%
Unaffiliated00.0%
Other parties22,53969.9%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20267,402 (22.9%)0 (0.0%)0 (0.0%)
2023–202422,723 (70.5%)4,277 (13.3%)4,689 (14.5%)
2021–202216,462 (51.0%)3,624 (11.2%)2,209 (6.8%)
2019–202021,115 (65.5%)8,206 (25.4%)3,954 (12.3%)
2017–201815,517 (48.1%)2,719 (8.4%)2,042 (6.3%)
2015–201617,641 (54.7%)5,548 (17.2%)4,034 (12.5%)
2013–201412,543 (38.9%)2,091 (6.5%)1,072 (3.3%)
2011–201214,874 (46.1%)2,097 (6.5%)1,932 (6.0%)

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
42,859 (± 743)
Median Age
40.3
Median Household Income
$89,080 (± $5,799)
High School Graduate or Higher (age 25+)
93.7%
Bachelor's Degree or Higher (age 25+)
33.8%

Population by Age

GroupPeopleShare
Under 187,72218.0%
18 to 6426,77462.5%
65 and over8,36319.5%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)3,6678.6%
White, not Hispanic36,15784.4%
Black, not Hispanic2730.6%
Asian, not Hispanic1,2132.8%
American Indian / Alaska Native, not Hispanic410.1%
Native Hawaiian / Pacific Islander, not Hispanic100.0%
Some other race, not Hispanic1300.3%
Two or more races, not Hispanic1,3683.2%

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
40,996
Citizen Voting Age Population (CVAP)
33,594

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic37,51591.5%
Hispanic3,4808.5%
White35,61986.9%
Black2580.6%
Asian8072.0%
American Indian / Alaska Native390.1%
Native Hawaiian / Pacific Islander70.0%
Two or More Races990.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic31,16492.8%
Hispanic2,4317.2%
White29,83888.8%
Black4301.3%
Asian6081.8%
American Indian / Alaska Native2270.7%
Native Hawaiian / Pacific Islander120.0%
Two or More Races610.2%

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