Iowa State Senate seat · lines in effect since 2022
Iowa Senate District 20
A district of about 70,000 people, 29% of adults with a bachelor's degree. It votes R+3.4 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
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 20.
Higher than 59% of seats.
Lower than 57% of seats.
Higher than 78% of seats.
Higher than 80% of seats.
Higher than 57% of seats.
Denser than 78% 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 3636% college gradsD+4.7Not up in 2026District 49
26% college gradsD+11.2Held DDistrict 40
34% college gradsD+13.7Not up in 2026District 41
27% college gradsR+9.6Held R
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