99chambers

Massachusetts House of Representatives seat · lines in effect since 2022

Massachusetts House of Representatives: 4th Suffolk District

A district of about 43,000 people, 74% of adults with a bachelor's degree. It votes D+32.7 relative to the nation for president.

David Biele (D) · since Nov 6, 2018Next election Nov 7, 2028The 2026 race →

Where it sits among all 160 seats

Every Massachusetts House of Representatives seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

D+32.768th most
Democratic
Most DemocraticMost Republican81st seat · the majority lineDistrict 126

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

2024
U.S. SenateD+15.3

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 160 seats. Small marks are other seats in Massachusetts. The black marker is District 126.

Adults with a bachelor's degree74% 91st pct · 16th of 160 in MA

Higher than 91% of seats.

White adults without a degree16% 15th pct · 136th of 160 in MA

Lower than 85% of seats.

Hispanic residents9% 57th pct · 69th of 160 in MA

Higher than 57% of seats.

Black residents4% 49th pct · 82nd of 160 in MA

Lower than 51% of seats.

Asian residents7% 62nd pct · 61st of 160 in MA

Higher than 62% of seats.

People per square mile895 32nd pct · 109th of 160 in MA

Less dense than 68% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET

Seats most like this one

Nearest seats on demographics, density and lean.

District 66
70% college gradsD+39.1Held DDistrict 106
62% college gradsD+29.6Held DDistrict 113
69% college gradsD+32.2Held DDistrict 160
67% college gradsD+40.1Held D

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Who has held it

These lines took effect in 2022.

  1. David Biele (D)
    2023– · Won 2022 by 95.2, 2024 unopposed, 2026 by 56.7

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)