99chambers

Michigan State Senate seat · lines in effect since 2026

Michigan Senate District 9

A district of about 266,000 people, 53% of adults with a bachelor's degree. It votes R+3.7 relative to the nation for president.

Michael Webber (R) · since Nov 8, 2022Flipped in 2026Next election Nov 5, 2030The 2026 race →

Where it sits among all 38 seats

Every Michigan 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.

R+3.721st most
Democratic
Most DemocraticMost Republican20th seat · the majority lineDistrict 9

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.

20202026
U.S. SenateR+5.2No race
Michigan State SenateNo raceD+7.0

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

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

Who lives here, compared

Grey bars show the spread of all 38 seats. Small marks are other seats in Michigan. The black marker is District 9.

Adults with a bachelor's degree53% 97th pct · 2nd of 38 in MI

Higher than 97% of seats.

White adults without a degree37% 19th pct · 31st of 38 in MI

Lower than 81% of seats.

Hispanic residents4% 27th pct · 28th of 38 in MI

Lower than 73% of seats.

Black residents5% 38th pct · 24th of 38 in MI

Lower than 62% of seats.

Asian residents17% 100th pct · 1st of 38 in MI

Highest of 38 seats.

People per square mile2,739 78th pct · 9th of 38 in MI

Denser than 78% 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 8
56% college gradsD+12.4Held DDistrict 13
49% college gradsR+0.5Held DDistrict 5
38% college gradsD+16.8Held DDistrict 14
43% college gradsD+9.9Held 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 2026.

  1. Theresa Brooks (D)
    2027– · Won 2026 by 7.0

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