Iowa State Senate seat · lines in effect since 2022
Iowa Senate District 42
A district of about 75,000 people, 33% of adults with a bachelor's degree. It votes R+18.0 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 42.
Higher than 69% of seats.
Higher than 53% of seats.
Lowest of 50 seats.
Lower than 80% of seats.
Lower than 51% of seats.
Less dense than 55% 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. 1 of the 4 flipped this year.
District 1132% college gradsR+21.4Held RDistrict 35
24% college gradsR+19.6Flipped RDistrict 30
24% college gradsR+16.9Not up in 2026District 24
30% college gradsR+22.0Not 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