99chambers

Michigan State Senate seat · lines in effect since 2026

Michigan Senate District 15

A district of about 263,000 people, 53% of adults with a bachelor's degree. It votes D+45.1 relative to the nation for president.

Jeff Irwin (D) · since Nov 6, 2018Next 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.

D+45.14th most
Democratic
Most DemocraticMost Republican20th seat · the majority lineDistrict 15

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.

201820202026
U.S. SenateD+39.5D+39.4No race
GovernorD+44.1No raceNo race
Michigan State SenateNo raceNo raceD+52.6

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 38 seats. Small marks are other seats in Michigan. The black marker is District 15.

Adults with a bachelor's degree53% 95th pct · 3rd of 38 in MI

Higher than 95% of seats.

White adults without a degree30% 11th pct · 34th of 38 in MI

Lower than 89% of seats.

Hispanic residents7% 73rd pct · 11th of 38 in MI

Higher than 73% of seats.

Black residents14% 73rd pct · 11th of 38 in MI

Higher than 73% of seats.

Asian residents8% 92nd pct · 4th of 38 in MI

Higher than 92% of seats.

People per square mile649 54th pct · 18th of 38 in MI

Denser than 54% 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 7
33% Black · 48% college gradsD+38.2Held DDistrict 10
43% college gradsD+32.2Held DDistrict 5
38% college gradsD+16.8Held DDistrict 19
41% college gradsD+17.7Held 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. Felicia Brabec (D)
    2027– · Won 2026 by 52.6

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