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Legislators › Senate › District 37

Official portrait of Li Arellano

Photo: Illinois General Assembly. Source.

37Senate
District

Senator

Li Arellano

SeatSenate District 37
PartyRepublican
Capitol officeSection A, Office E · Stratton Office Building
Mailing addressSection A, Office E, Stratton Office Building, Springfield, IL 62706
Capitol phone217-782-1942
Legislative assistantDenise Brown
HometownDixon
TenureServing since 2025
Term limitedNo term limits

Committees 7

Bills, 104th General Assembly 31 as principal author · 176 as coauthor

All 31 bills as principal author ›

Coauthor of HB 1141, HB 1628, HB 1715, HB 1787, HB 2196, HB 2327, HB 2340, HB 2366, HB 2409, HB 2994, HB 3435, HB 3718 and 164 more.

Bills and sponsors: Open States bulk data (public domain dedication), 2026-11-public.pgdump; status is read from the official actions. About the momentum score

Effectiveness 104th General Assembly, 2025 to 2026

0.9630th of 59 in the Senate
50th percentile
Bills & joint resolutions authored23
… passed committee / chamber / both1 / 1 / 1
… became law1
Carried in the other chamber (became law)7 (5)
Points vs. Senate minority average30 ÷ 31.24 = 0.96
Most-authored topicsEnvironment, water & wildlife (4), Cities, towns & counties (4), Budget & taxes (3)

Senate rankings · How the score works. A count of bill progress, not a judgment of the member's work.

Closest allies co-authorship, 2025 to 2026

“Written together” = 104th General Assembly bills and joint resolutions on which both are principal author or coauthor (measures with more than 60 sponsors are left out). Sharing bills does not imply a personal or political alliance.

District 37

Counties
Bureau, DeKalb, Henry, LaSalle, Lee, Marshall, Ogle, Peoria, Rock Island, Stark, Whiteside, Woodford
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House members sharing a county
Jeff Keicher (70), Dan Swanson (71), Gregg Johnson (72), Ryan Spain (73), Brad Fritts (74), Jed Davis (75), Murri Briel (76), Tony McCombie (89), Sharon Chung (91), Jehan Gordon-Booth (92), Travis Weaver (93), Norine Hammond (94), Dennis Tipsword (105), Jason Bunting (106)
Senate District 37 and neighboursSenate District 1: Javier Cervantes (D)Senate District 2: Omar Aquino (D)Senate District 3: Mattie Hunter (D)Senate District 4: Kimberly Lightford (D)Senate District 5: Lakesia Collins (D)Senate District 6: Sara Feigenholtz (D)Senate District 7: Mike Simmons-Gessesse (D)Senate District 8: Ram Villivalam (D)Senate District 9: Laura Fine (D)Senate District 10: Rob Martwick (D)Senate District 11: Mike Porfirio (D)Senate District 12: Celina Villanueva (D)Senate District 13: Robert Peters (D)Senate District 14: Emil Jones (D)Senate District 15: Napoleon Harris (D)Senate District 16: Willie Preston (D)Senate District 17: Elgie Sims (D)Senate District 18: Bill Cunningham (D)Senate District 19: Mike Hastings (D)Senate District 20: Graciela Guzmán (D)Senate District 21: Laura Ellman (D)Senate District 22: Cristina Castro (D)Senate District 23: Suzy Glowiak Hilton (D)Senate District 24: Seth Lewis (R)Senate District 25: Karina Villa (D)Senate District 26: Darby Hills (R)Senate District 27: Mark Walker (D)Senate District 28: Laura Murphy (D)Senate District 29: Julie Morrison (D)Senate District 30: Adriane Johnson (D)Senate District 31: Mary Edly-Allen (D)Senate District 32: Craig Wilcox (R)Senate District 33: Don DeWitte (R)Senate District 34: Steve Stadelman (D)Senate District 35: Dave Syverson (R)Senate District 36: Mike Halpin (D)Senate District 37: Li Arellano (R)Senate District 38: Sue Rezin (R)Senate District 39: Don Harmon (D)Senate District 40: Patrick Joyce (D)Senate District 41: John Curran (R)Senate District 42: Linda Holmes (D)Senate District 43: Rachel Ventura (D)Senate District 44: Sally Turner (R)Senate District 45: Andrew Chesney (R)Senate District 46: Dave Koehler (D)Senate District 47: Neil Anderson (R)Senate District 49: Meg Loughran Cappel (D)Senate District 51: Chapin Rose (R)Senate District 52: Paul Faraci (D)Senate District 53: Chris Balkema (R)CookKaneRock IslandStephensonMcDonoughMasonLakeDuPageMcHenryVermilionBooneMcLeanKnoxMercerPutnamKankakeeKendallGrundyTazewellHancockLeeDeKalbJo DaviessIroquoisWhitesideBureauCarrollWillLaSallePeoriaOgleLivingstonWoodfordFultonHendersonHenryFordStarkChampaignWarrenLoganWinnebagoMarshall123456789101112131415161718192021222324252627282930313233343536373839404142434445464749515253
District 37 outlined; neighbours link to their members. Full map › · Census 2024 boundaries, simplified.

Official district map: see the official Senate page.

Lobbyist reports naming this member 2025 to 2026

No lobbyist expenditure reports naming this member are in our data.

Registered lobbyists and the organizations they represent are on our sister site, the Illinois Lobby Guide.

A reported expenditure is a legal, disclosed activity and does not imply wrongdoing.

Source

Copied from https://www.ilga.gov/Senate/Members/Details/3383 on November 2, 2026, through Open States people data (CC0), checked against official legislature rosters. Not endorsed by the Illinois State Senate.

Sources for this page

Copied from public pages of the Illinois House of Representatives and the Illinois State Senate, through Open States people data (CC0), checked against official legislature rosters. Neither Illinois Capitol Guide nor this information, as presented here, is endorsed by the Illinois House of Representatives or the Illinois State Senate.