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

Updated October 22, 2026, 09:28 UTC

State legislatures › Idaho House

Idaho House District 9A

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

Decided: only a Republican is running · John C. Shirts (R)

How it has voted

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

Legislature 2022uncontested (R)
Governor 2022R+75
Legislature 2024R+70
President 2024R+64
← RepublicanDemocratic →

Who lives here

Census Bureau, American Community Survey 2019-2023.

This districtIdaho
Median household income$64,063$74,636
Bachelor's degree or more (25+)20%31%
Median age4037
White (not Hispanic)74%79%
Black0%1%
Hispanic20%13%
Asian1%1%
Born abroad6%6%
Jobs in manufacturing13%9%
Jobs in farming or mining10%4%

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.