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

Updated October 22, 2026, 09:28 UTC

State legislatures › Montana Senate

Montana Senate District 31

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

95% chance of a Democratic win · Richard Aungier (R), Kathleen Williams (D)

Montana Senate District 31: ForecastMontana Senate 29: chance of a Democratic win 77%Montana Senate 30: not up in 2026 (held by democrat); 2024 president D+7Montana Senate 32: chance of a Democratic win 91%Montana Senate 33: not up in 2026 (held by democrat); 2024 president D+6Montana Senate 34: chance of a Democratic win 1%Montana Senate District 31: Forecast3433302931
Safe DLean DToss-upLean RSafe RHatched: not up in 2026 (shaded by holder) · dashed: other state

District 31 is safe Democratic. Of its 5 neighbouring districts, 4 favour Democrats, 1 favours Republicans.

StatusForecast
Chance of a Democratic win95%
Likely margin (80% range)D+9 to D+55, middle D+32
CandidatesRichard Aungier (R), Kathleen Williams (D)
Candidate list fromnews guide
Current memberPat Flowers

Who lives here

Census Bureau, American Community Survey 2019-2023.

This districtMontana
Median household income$107,557$69,922
Bachelor's degree or more (25+)71%35%
Median age3840
White (not Hispanic)89%84%
Black1%0%
Hispanic4%4%
Asian2%1%
Born abroad4%2%
Jobs in manufacturing4%5%
Jobs in farming or mining3%6%

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.