Iowa State Senate seat · lines in effect since 2022
Iowa Senate District 45
A district of about 61,000 people, 58% of adults with a bachelor's degree. It votes D+55.6 relative to the nation for president.
Where it sits among all 50 seats
Every Iowa State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2022 | |
|---|---|
| Iowa State Senate | D+64.1 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: Iowa Secretary of StateUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 50 seats. Small marks are other seats in Iowa. The black marker is District 45.
Higher than 98% of seats.
Lowest of 50 seats.
Higher than 65% of seats.
Higher than 92% of seats.
Higher than 94% of seats.
Denser than 96% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 1847% college gradsD+46.0Not up in 2026District 43
56% college gradsD+40.2Held DDistrict 25
64% college gradsD+30.2Held DDistrict 16
53% college gradsD+18.1Not up in 2026
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Who has held it
These lines took effect in 2022.
- Janice Weiner (D)
2023– · Won 2022 by 64.1, 2026 unopposed
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)