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

Updated October 22, 2026, 09:28 UTC

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Iowa House District 4

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

No Democrat running: counted Republican · Skyler Wheeler (R), Garth Van Donselaar (independent)

Iowa House District 4: No Democrat running: counted RepublicanIowa House 3: chance of a Democratic win <1%; 2024 president R+58Iowa House 5: chance of a Democratic win 2%; 2024 president R+56Minnesota House 21A: chance of a Democratic win 2%; 2024 president R+45South Dakota House 16: chance of a Democratic win <1%; 2024 president R+46South Dakota House 2: chance of a Democratic win 9%; 2024 president R+30South Dakota House 6: chance of a Democratic win >99%; 2024 president R+33Iowa House District 4: No Democrat running: counted RepublicanSD 63SD 165MN 21A4
Safe DLean DToss-upLean RSafe RHatched: not up in 2026 (shaded by holder) · dashed: other state

District 4 is safe Republican. Of its 6 neighbouring districts, 1 favours Democrats, 5 favour Republicans. 4 of them are across the state line.

StatusNo Democrat running: counted Republican
CandidatesSkyler Wheeler (R), Garth Van Donselaar (independent)
Candidate list fromofficial
Current memberSkyler Wheeler

How it has voted

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

Legislature 2022uncontested (R)
Governor 2022R+83
Legislature 2024uncontested (R)
President 2024R+74
← RepublicanDemocratic →

Who lives here

Census Bureau, American Community Survey 2019-2023.

This districtIowa
Median household income$79,910$73,147
Bachelor's degree or more (25+)26%31%
Median age3639
White (not Hispanic)86%83%
Black0%4%
Hispanic11%7%
Asian1%2%
Born abroad6%6%
Jobs in manufacturing16%15%
Jobs in farming or mining9%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.