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IL

Illinois Senate District 10

Next vote Tue, Nov 3, 2026 · Represented by Rob Martwick Democratic · Member list as of Oct 28

This seat has no race on the official 2026 list.

Last election
Rob Martwick (Democratic) won by 21.8 points, 2024

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Illinois Senate districts, District 10 selectedState Senate District 58: Terri BryantState Senate District 1: Javier CervantesState Senate District 2: Omar AquinoState Senate District 4: Kimberly LightfordState Senate District 5: Lakesia CollinsState Senate District 6: Sara FeigenholtzState Senate District 7: Mike Simmons-GessesseState Senate District 9: Laura FineState Senate District 11: Mike PorfirioState Senate District 13: Robert PetersState Senate District 15: Napoleon HarrisState Senate District 17: Elgie SimsState Senate District 19: Mike HastingsState Senate District 21: Laura EllmanState Senate District 22: Cristina CastroState Senate District 23: Suzy Glowiak HiltonState Senate District 24: Seth LewisState Senate District 25: Karina VillaState Senate District 26: Darby HillsState Senate District 28: Laura MurphyState Senate District 29: Julie MorrisonState Senate District 31: Mary Edly-AllenState Senate District 32: Craig WilcoxState Senate District 35: Dave SyversonState Senate District 36: Mike HalpinState Senate District 38: Sue RezinState Senate District 39: Don HarmonState Senate District 40: Patrick JoyceState Senate District 41: John CurranState Senate District 42: Linda HolmesState Senate District 43: Rachel VenturaState Senate District 44: Sally TurnerState Senate District 45: Andrew ChesneyState Senate District 46: Dave KoehlerState Senate District 47: Neil AndersonState Senate District 48: Doris TurnerState Senate District 49: Meg Loughran CappelState Senate District 50: Jil TracyState Senate District 51: Chapin RoseState Senate District 52: Paul FaraciState Senate District 53: Chris BalkemaState Senate District 54: Steve McClureState Senate District 55: Jason PlummerState Senate District 56: Erica HarrissState Senate District 57: Christopher BeltState Senate District 59: Paul JacobsState Senate District 33: Don DeWitteState Senate District 27: Mark WalkerState Senate District 20: Graciela GuzmánState Senate District 34: Steve StadelmanState Senate District 3: Mattie HunterState Senate District 12: Celina VillanuevaState Senate District 8: Ram VillivalamState Senate District 37: Li ArellanoState Senate District 30: Adriane JohnsonState Senate District 16: Willie PrestonState Senate District 18: Bill CunninghamState Senate District 14: Emil JonesState Senate District 10: Rob Martwick
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Official results for Illinois

History (18 elections for this seat)

Last contest in this district on file: 2024.

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Election Wrld. (2026). Illinois Senate District 10, election results 1970 to 2024. https://www.electionwrld.com/il/senate/10. Retrieved October 30, 2026.

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Sources

Sources: Census TIGERweb Legislative MapServer (120th CDs layer 0, 119th CDs layer 4, 2026 SLD upper layer 1 and lower layer 2) (US Census Bureau, public domain), retrieved Oct 28, 2026; Open Civic Data division identifiers (census_autogenerated us_sldl/us_sldu and openstates state files); also (sld-recent.json): Open Civic Data division identifiers (country-us) (CC0 (repository); also (sld-recent.json): CC0 1.0), retrieved Oct 28, 2026; Open States people (current) CSVs (CC0-1.0 (Open States people data)), retrieved Oct 28, 2026, compiled by Open States volunteers and staff (rosters from state legislature sites) from official returns, not an official source; MEDSL 2024 official precinct returns (individual_states zips) (Not stated in the GitHub repository (an earlier label said "MIT (repo)", which the repository does not support). MEDSL's Harvard Dataverse records are CC0 1.0, but these GitHub files were not checksum-matched to the Dataverse files, so CC0 is not claimed for them.), retrieved Oct 28, 2026, compiled by MIT Election Data and Science Lab (MEDSL) from official returns, not an official source; State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse) (CC0 1.0), retrieved Oct 28, 2026, compiled by Carl Klarner (Harvard Dataverse) from official returns, not an official source.

District id: ocd-division/country:us/state:il/sldu:10

DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse)Data as of Oct 28, 2026