Iowa › Polk County › Iowa House District 31
2 candidates are tracked for Iowa House District 31 on the November 3, 2026 ballot: Kevin W. DuBay and Mary Madison. Candidate information follows official Polk County election filings; verify with the official election office linked below.
Kevin W. DuBay (Republican), Mary Madison (Democratic) are on the November 3 ballot for Iowa House District 31; Mary Madison is the sitting member, per the legis.iowa.gov legislator roster. Major-party nominees were chosen at the June 2 primary; No Party candidates qualify by nominating petition. The field is the Secretary of State's 2026 General Election candidate list, as read September 11, 2026. This seat is elected by district; only the district covering your address appears on your ballot.
Republican
Kevin W. DuBay is the Republican candidate for Iowa House District 31, based in West Des Moines, according to the Des Moines Register. He is challenging incumbent Democratic Rep. Mary Madison. No campaign website or questionnaire response was found as of September 11, 2026; the Secretary of State's certified candidate list is the only verifiable source for Kevin W. DuBay.
Democratic · Incumbent
Mary Madison has represented Iowa House District 31 since January 2023, according to the Des Moines Register. She is a licensed school counselor, social worker and ordained minister seeking a third term. No campaign website or questionnaire response was found as of September 11, 2026; the Secretary of State's certified candidate list is the only verifiable source for Mary Madison.