99chambers

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

Massachusetts's 8th District

A district of about 791,000 people, 53% of adults with a bachelor's degree. It votes D+29.3 relative to the nation for president.

Stephen F. Lynch (D) · since Oct 23, 2001Next election Nov 7, 2028The 2026 race →
MA-8

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+29.386th most
Democratic
Most DemocraticMost Republican218th seat · the majority line75MA-8264319

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.

202220242026
U.S. SenateNo raceD+35.5No race
U.S. HouseD+39.6D+41.2D+42.6

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-8.

Adults with a bachelor's degree53% 92nd pct · 2nd of 9 in MA

Higher than 92% of seats.

White adults without a degree29% 34th pct · 7th of 9 in MA

Lower than 66% of seats.

Hispanic residents7% 28th pct · 7th of 9 in MA

Lower than 72% of seats.

Black residents10% 61st pct · 2nd of 9 in MA

Higher than 61% of seats.

Asian residents10% 83rd pct · 3rd of 9 in MA

Higher than 83% of seats.

People per square mile1,716 76th pct · 3rd of 9 in MA

Denser than 76% 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.

MN-3
52% college gradsD+21.6Held DMI-6
53% college gradsD+24.7Held DMD-3
53% college gradsD+24.8Held DMN-4
47% college gradsD+37.0Held 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. Stephen F. Lynch (D)
    2023– · Won 2022 by 39.6, 2024 by 41.2, 2026 by 42.6

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