Election forecasts you can inspect.Tested models, shown with their sources and their uncertainty.

Updated October 22, 2026, 09:28 UTC

State legislatures › Illinois House

Illinois House District 118

2026 forecast · Updated October 22, 2026, 09:28 UTC

3% chance of a Democratic win · Homer "Chip" Markel (D), Scott Doody (R)

Illinois House District 118: ForecastIllinois House 115: chance of a Democratic win <1%; 2024 president R+44Illinois House 116: chance of a Democratic win <1%; 2024 president R+57Illinois House 117: chance of a Democratic win <1%; 2024 president R+54Kentucky House 1: chance of a Democratic win <1%; 2024 president R+52Missouri House 145: chance of a Democratic win 2%; 2024 president R+55Missouri House 146: chance of a Democratic win 3%; 2024 president R+56Missouri House 147: chance of a Democratic win <1%; 2024 president R+29Missouri House 148: chance of a Democratic win 2%; 2024 president R+59Missouri House 149: chance of a Democratic win 3%; 2024 president R+50Illinois House District 118: ForecastMO 148MO 145KY 1MO 149115116117118
Safe DLean DToss-upLean RSafe RHatched: not up in 2026 (shaded by holder) · dashed: other state

District 118 is safe Republican. Of its 9 neighbouring districts, 9 favour Republicans. 6 of them are across the state line.

StatusForecast
Chance of a Democratic win3%
Likely margin (80% range)R+61 to R+15, middle R+37
CandidatesHomer "Chip" Markel (D), Scott Doody (R)
Candidate list fromaggregator (The Ballot Brief)
Current memberScott Doody

How it has voted

On its current lines. Legislative contests and the top-of-ticket vote inside the district.

Legislature 2022R+23
Governor 2022R+21
Legislature 2024uncontested (R)
President 2024R+16
← RepublicanDemocratic →

Who lives here

Census Bureau, American Community Survey 2019-2023.

This districtIllinois
Median household income$52,157$81,702
Bachelor's degree or more (25+)30%37%
Median age3839
White (not Hispanic)79%59%
Black11%14%
Hispanic4%18%
Asian3%6%
Born abroad4%14%
Jobs in manufacturing8%12%
Jobs in farming or mining2%1%

Initial version. This model was tested on every state legislative election from 1994 to 2024 before publication, forecasting each as if it had not happened. It beat the simple rule “the party that holds the seat keeps it”, and its chamber seat counts were off by 2.9 seats on average (target: under 3). Districts with no two-party race last time are read from their own presidential vote, a change tested in advance that cut their average error from 17 to 13 points. It missed one of its five accuracy targets: in 2024, the calmest year on record, its ranges were wider than they needed to be (92% of results fell inside its 80% ranges; target: at most 88%). Treat the ranges as cautious. The full test record and code.