2020Final results
2020 election for Iowa Senate District 48
Iowa State Senate · Iowa
Dan Zumbach (R) won with 65.1% of the vote, defeating Eric Green (D) by 30.3 points.
Dan ZumbachRepublican · winner · incumbent
65.1%22,544
Eric GreenDemocrat
34.8%12,050
34,628 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET