Massachusetts State Senate seat · lines in effect since 2022

Massachusetts State Senate: Norfolk and Suffolk District

A district of about 188,000 people, 60% of adults with a bachelor's degree. It votes D+37.5 relative to the nation for president.

Where it sits among all 40 seats

Every Massachusetts State Senate 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+37.512th most
Democratic
Most DemocraticMost Republican21st seat · the majority lineDistrict D18

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+46.4

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 40 seats. Small marks are other seats in Massachusetts. The black marker is District D18.

Adults with a bachelor's degree60% 85th pct · 7th of 40 in MA

Higher than 85% of seats.

White adults without a degree24% 23rd pct · 31st of 40 in MA

Lower than 77% of seats.

Hispanic residents11% 67th pct · 14th of 40 in MA

Higher than 67% of seats.

Black residents11% 87th pct · 6th of 40 in MA

Higher than 87% of seats.

Asian residents5% 54th pct · 19th of 40 in MA

Higher than 54% of seats.

People per square mile2,862 74th pct · 11th of 40 in MA

Denser than 74% of seats.

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

Who has held it

These lines took effect in 2022.

  1. Persis S. Yu (D)
    2027– · Won 2026 unopposed
  2. Michael F. Rush (D)
    2023–2027 · Won 2022 by 96.3, 2024 unopposed

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