99chambers

Illinois House of Representatives seat · lines in effect since 2022

Illinois Representative District 109

A district of about 101,000 people, 34% of adults with a bachelor's degree. It votes R+39.6 relative to the nation for president.

Charlie Meier (R) · since Nov 6, 2012Next election Nov 7, 2028The 2026 race →

Where it sits among all 118 seats

Every Illinois House of Representatives 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+39.6109th most
Democratic
Most DemocraticMost Republican60th seat · the majority lineDistrict 109

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.

201620182020
U.S. SenateR+18.4No raceR+33.5
GovernorNo raceR+28.9No race

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 118 seats. Small marks are other seats in Illinois. The black marker is District 109.

Adults with a bachelor's degree34% 49th pct · 61st of 118 in IL

Lower than 51% of seats.

White adults without a degree60% 83rd pct · 21st of 118 in IL

Higher than 83% of seats.

Hispanic residents3% 9th pct · 108th of 118 in IL

Lower than 91% of seats.

Black residents2% 6th pct · 111th of 118 in IL

Lower than 94% of seats.

Asian residents1% 8th pct · 109th of 118 in IL

Lower than 92% of seats.

People per square mile75 14th pct · 102nd of 118 in IL

Less dense than 86% 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 101
29% college gradsR+34.3Held RDistrict 87
27% college gradsR+38.1Held RDistrict 108
27% college gradsR+37.1Held RDistrict 99
25% college gradsR+40.8Held R

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. Republican (R)
    2027– · Won 2026 unopposed
  2. Charles Meier (R)
    2023–2027 · Won 2022 unopposed, 2024 unopposed

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