99chambers

Vermont State Senate seat · lines in effect since 2022

Vermont State Senate: Grand Isle Senatorial District

A district of about 21,000 people, 43% of adults with a bachelor's degree. It votes D+35.6 relative to the nation for president.

Patrick Brennan (R) · since Nov 5, 2024Flipped in 2026Next election Nov 7, 2028The 2026 race →

Where it sits among all 16 seats

Every Vermont 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+35.67th most
Democratic
Most DemocraticMost Republican9th seat · the majority lineDistrict GRI

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
Vermont State SenateD+46.5R+5.7D+7.2

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

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

Who lives here, compared

Grey bars show the spread of all 16 seats. Small marks are other seats in Vermont. The black marker is District GRI.

Adults with a bachelor's degree43% 53rd pct · 8th of 16 in VT

Higher than 53% of seats.

White adults without a degree52% 33rd pct · 11th of 16 in VT

Lower than 67% of seats.

Hispanic residents3% 93rd pct · 2nd of 16 in VT

Higher than 93% of seats.

Black residents2% 87th pct · 3rd of 16 in VT

Higher than 87% of seats.

Asian residents2% 73rd pct · 5th of 16 in VT

Higher than 73% of seats.

People per square mile105 80th pct · 4th of 16 in VT

Denser than 80% 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 ADD
44% college gradsD+39.0Held DDistrict WDH
45% college gradsD+46.7Held DDistrict LAM
40% college gradsD+31.4Held RDistrict BEN
42% college gradsD+25.4Held 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. Kim Gleason (D)
    2027– · Won 2026 by 7.2
  2. Pat Brennan (R)
    2025–2027 · Won 2024 by 5.7
  3. Richard Mazza (D)
    2023–2025 · Won 2022 by 46.5

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