Districts › Senate
Senate District 21
Every race for this seat since 2018, with campaign money →
Represented by
Sen. Mike Bousselot Republican · Polk
Members elected in November 2026 take office when the 92nd General Assembly convenes on Monday, January 11, 2027. Funnel will show them here once the Legislature publishes the new roster.
Latest election
- Heather Matson DProjected winnerFlip19,86056.3%
- John Hollinrake R15,39843.6%
Registered voters
45,965 active voters, November 2026. Republicans lead by 2,651.
| November 2026 | November 2025 | June 2022 | |
|---|---|---|---|
| Republican | 16,428 35.7% | 15,772 36.0% | 14,169 34.8% |
| Democratic | 13,777 30.0% | 12,517 28.5% | 12,882 31.6% |
| No party | 15,370 33.4% | 15,152 34.6% | 13,299 32.6% |
| Other parties | 390 0.8% | 405 0.9% | 412 1.0% |
Active registrations from the Secretary of State’s monthly totals (Iowa Data Hub); a Senate district is two House districts. Inactive registrations (about 12.4% of the total) aren’t counted.
Who lives here
- People2.1% of Iowans69,170
- Median household incomeIowa: $75,501$108,095
- Median ageIowa: 39.033.8
- Adults with a bachelor’s degree or moreIowa: 32.1%51.4%
- Below the poverty lineIowa: 11.3%3.9%
- Homes lived in by their ownersIowa: 71.3%71.3%
U.S. Census Bureau, ACS 2024 5-year estimates (via Census Reporter). Survey estimates have margins of error, larger for small groups.
Who has held this seat
Since the 90th General Assembly (2023), the first elected under the district maps drawn in 2021. Earlier districts with this number covered different areas.