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Iowa House District 31

Every race for this seat since 2018.

District lines were redrawn after the 2020 census. Races before 2022 used the old legislative map, so the same number covered a different area.

Serves now

Mary Lee Madison D

Re-elected November 3, 2026

2026

General electionNovember 3, 2026 · 97% reporting

Mary Madison DIncumbentWinner9,98663.1%
Kevin W. DuBay R5,81536.8%

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Republican primaryJune 2, 2026

Kevin W. Dubay RUnopposed1,62298.5%

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Democratic primaryJune 2, 2026

Mary Madison DIncumbentUnopposed3,15599.7%

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2024

General electionNovember 5, 2024

Mary Madison DIncumbentUnopposed12,46596.0%

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2022

General electionNovember 8, 2022

Mary Madison DWinner8,03856.5%
Justin Pearson R6,18143.4%

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Democratic primaryJune 7, 2022

Mary Madison DWinner1,51362.6%
Michael Andreski D89637.1%

2020

General electionNovember 3, 2020

Rick L. Olson DIncumbentUnopposed10,07095.9%

2018

General electionNovember 6, 2018

Rick L. Olson DUnopposed8,57696.0%

Democratic primaryJune 5, 2018

Rick L. Olson DWinner1,38563.1%
Tiffany Allison D48922.3%
Heather A. Ryan D31714.4%

Races and results: civicAPI and the Iowa Secretary of State. State campaign finance: summary totals from reports filed with the Iowa Ethics & Campaign Disclosure Board. Federal: the Federal Election Commission.