99chambers

Michigan State Senate seat · lines in effect since 2026

Michigan Senate District 4

A district of about 266,000 people, 25% of adults with a bachelor's degree. It votes D+1.4 relative to the nation for president.

Darrin Camilleri (D) · since Nov 8, 2022Next 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+1.418th most
Democratic
Most DemocraticMost Republican20th seat · the majority lineDistrict 4

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.

2026
Michigan State SenateD+16.9

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 4.

Adults with a bachelor's degree25% 35th pct · 25th of 38 in MI

Lower than 65% of seats.

White adults without a degree56% 65th pct · 14th of 38 in MI

Higher than 65% of seats.

Hispanic residents6% 68th pct · 13th of 38 in MI

Higher than 68% of seats.

Black residents16% 76th pct · 10th of 38 in MI

Higher than 76% of seats.

Asian residents2% 49th pct · 20th of 38 in MI

Lower than 51% of seats.

People per square mile1,049 65th pct · 14th of 38 in MI

Denser than 65% 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 35
28% college gradsD+1.4Held DDistrict 2
27% college gradsD+3.6Held DDistrict 12
34% college gradsR+6.6Held DDistrict 21
31% college gradsD+13.5Held 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. Darrin Camilleri (D)
    2027– · Won 2026 by 16.9

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