Illinois Senate District 37
State Senate District 37
Covers all of Lee County and Whiteside County; parts of Bureau County, LaSalle County, Henry County, DeKalb County, Ogle County, Peoria County, Rock Island County, Stark County and Marshall County.
Who Holds This Seat
Running in 2026
No 2026 candidates are on file for this seat yet.
The District
Includes Peoria (part), Rochelle, Dixon, Amboy, Princeton, Sterling, Chillicothe (part), Dunlap (part), Fulton, Geneseo, Hillcrest (part), Joslin and 65 more.
265 precincts · District lines: State senate lines: U.S. Census Bureau (1:500,000 cartographic boundary) · Precinct lines: Chicago Board of Election Commissioners, Boundaries - Ward Precincts (2023-2024) (data.cityofchicago.org 6piy-vbxa) for the City of Chicago; Cook County Clerk, Suburban Cook Election Precincts - Current (datacatalog.cookcountyil.gov k7sw-w3b8); DuPage County, Election_Precincts layer (gis.dupageco.org, current, retrieved 2026-09-24); U.S. Census Bureau 2020 VTDs elsewhere in Illinois; U.S. Census Bureau 2020 TIGER/Line VTDs where no official layer
Results in This District
| Contest | First | Second | Margin | Votes | Source |
|---|---|---|---|---|---|
| 2024 President245 precinctsIllinois State Board of ElectionsOfficial vote | Donald J. Trump (R)58,895 · 59.2% | Kamala D. Harris (D)38,170 · 38.4% | R+20.8 | 99,513 | Illinois State Board of ElectionsOfficial vote |
| 2022 U.S. Senate241 precinctsIllinois State Board of ElectionsOfficial vote | Kathy Salvi (R)45,229 · 57.7% | Tammy Duckworth (D)31,555 · 40.3% | R+17.4 | 78,381 | Illinois State Board of ElectionsOfficial vote |
| 2022 Governor241 precinctsIllinois State Board of ElectionsOfficial vote | Darren Bailey (R)46,458 · 58.9% | Jb Pritzker (D)29,879 · 37.9% | R+21.0 | 78,862 | Illinois State Board of ElectionsOfficial vote |
| 2020 President265 precinctsIllinois State Board of ElectionsOfficial vote | Donald J. Trump (R)67,529 · 56.6% | Joseph R. Biden (D)48,917 · 41.0% | R+15.6 | 119,299 | Illinois State Board of ElectionsOfficial vote |
| 2020 U.S. Senate265 precinctsIllinois State Board of ElectionsOfficial vote | Mark C. Curran Jr. (R)64,530 · 54.7% | Richard J. Durbin (D)48,890 · 41.4% | R+13.3 | 117,951 | Illinois State Board of ElectionsOfficial vote |
Totals add up the certified precinct results for the precincts inside today's district lines. A precinct split by the district line counts in full, or only in the district holding most of its voters where the linkage assigns it to one, and votes a county reported only countywide (some counties' absentee and early votes) are left out, so totals can differ from an official canvass.
Past Results
State Senator, District 37
2024 General Election · Nov 5, 2024| Candidate | Party | Votes | Share |
|---|---|---|---|
| Li Arellano, Jr.Republican | Republican | 86,286 | 100.0% |
Official vote — Illinois State Board of Elections (certified canvass, precinct vote totals by election authority) · Illinois State Board of Elections — Election Vote Totals by Precinct
State Senator, District 37
2022 General Election · Nov 8, 2022| Candidate | Party | Votes | Share |
|---|---|---|---|
| Win StollerRepublican | Republican | 66,467 | 100.0% |
Official vote — Illinois State Board of Elections (certified canvass, precinct vote totals by election authority) · Illinois State Board of Elections — Election Vote Totals by Precinct
State Senator, District 37
2020 General Election · Nov 3, 2020| Candidate | Party | Votes | Share |
|---|---|---|---|
| Win StollerRepublican | Republican | 93,569 | 98.7% |
| Write-In | 946 | 1.0% | |
| Marcus Throneburg | 275 | 0.3% |
Official vote — Illinois State Board of Elections (certified canvass, precinct vote totals by election authority) · Illinois State Board of Elections — Election Vote Totals by Precinct