Illinois State Senate seat · lines in effect since 2022
Illinois Legislative District 38
A district of about 220,000 people, 28% of adults with a bachelor's degree. It votes R+6.8 relative to the nation for president.
Where it sits among all 59 seats
Every Illinois 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.
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 | 2026 | |
|---|---|---|---|---|
| U.S. Senate | D+1.7 | No race | D+1.4 | No race |
| Governor | No race | D+4.4 | No race | No race |
| Illinois State Senate | No race | No race | No race | R+4.0 |
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 59 seats. Small marks are other seats in Illinois. The black marker is District 38.
Lower than 66% of seats.
Higher than 78% of seats.
Higher than 55% of seats.
Lower than 53% of seats.
Lower than 71% of seats.
Less dense 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 3234% college gradsR+5.9CountingDistrict 36
24% college gradsD+5.6Held DDistrict 35
41% college gradsR+9.0CountingDistrict 56
30% college gradsR+2.3Counting
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.
- Sue Rezin (R)
2023– · Won 2022 unopposed
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)