Illinois House of Representatives seat · lines in effect since 2022
Illinois Representative District 88
A district of about 126,000 people, 40% of adults with a bachelor's degree. It votes R+20.5 relative to the nation for president.
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.
Democratic
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.
| 2016 | 2018 | 2020 | |
|---|---|---|---|
| U.S. Senate | R+35.9 | No race | R+29.1 |
| Governor | No race | R+33.5 | No 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 88.
Higher than 62% of seats.
Higher than 79% of seats.
Lower than 90% of seats.
Higher than 52% of seats.
Higher than 60% of seats.
Less dense than 84% 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 7333% college gradsR+24.6Held RDistrict 105
33% college gradsR+27.1Held RDistrict 118
30% college gradsR+15.8CountingDistrict 93
27% college gradsR+25.9Held 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.
- Regan Deering (R)
2025– · Won 2024 unopposed, 2026 unopposed - Dan Caulkins (R)
2023–2025 · Won 2022 unopposed
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)