99chambers

U.S. House seat · lines in effect since 2022

Massachusetts's 5th District

A district of about 779,000 people, 61% of adults with a bachelor's degree. It votes D+47.8 relative to the nation for president.

Katherine M. Clark (D) · since Dec 12, 2013Next election Nov 7, 2028The 2026 race →
MA-5

Source: 2026 results: civicAPI; boundaries: Census Bureau TIGER/LineUpdated Nov 7, 2026, 3:01 PM ET

Where it sits among all 435 seats

Every U.S. House 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+47.838th most
Democratic
Most DemocraticMost Republican218th seat · the majority line7MA-58264319

Labels below the bar mark 8 other seats in Massachusetts.

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.

2022
U.S. HouseD+48.1

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 435 seats. Small marks are other seats in Massachusetts. The black marker is MA-5.

Adults with a bachelor's degree61% 97th pct · 1st of 9 in MA

Higher than 97% of seats.

White adults without a degree23% 24th pct · 8th of 9 in MA

Lower than 76% of seats.

Hispanic residents11% 42nd pct · 6th of 9 in MA

Lower than 58% of seats.

Black residents5% 35th pct · 5th of 9 in MA

Lower than 65% of seats.

Asian residents14% 90th pct · 1st of 9 in MA

Higher than 90% of seats.

People per square mile3,252 86th pct · 2nd of 9 in MA

Denser than 86% 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.

IL-9
56% college gradsD+38.2Held DIL-5
66% college gradsD+38.3Held DCA-36
67% college gradsD+41.5Held DCA-30
24% Hispanic · 51% college gradsD+42.3Held 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. Katherine M. Clark (D)
    2023– · Won 2022 by 48.1, 2024 unopposed, 2026 unopposed

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