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Iowa Senate District 21

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

Mike Bousselot R

Won the November 3, 2026 election

Heather Matson D

Takes office in January 2027

2026

General electionNovember 3, 2026

Heather Matson DWinner19,86056.3%
John Hollinrake R15,39843.6%

Map by county →

Republican primaryJune 2, 2026

John Hollinrake RUnopposed3,94599.4%

Map by county →

Democratic primaryJune 2, 2026

Heather Matson DUnopposed4,24799.9%

Map by county →

2022

General electionNovember 8, 2022

Mike Bousselot RWinner14,89650.9%
Todd Brady D14,33649.0%

2018

General electionNovember 6, 2018

Claire Celsi DWinner20,49966.0%
Brian B. Bales R10,51133.9%

Map by county →

Democratic primaryJune 5, 2018

Claire Celsi DWinner5,28757.9%
Connie Ryan D3,81841.8%

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.