2018Final results
2018 election for Iowa Senate District 47
Iowa State Senate · Iowa
Roby Smith (R) won with 52.8% of the vote, defeating Marie Gleason (D) by 5.6 points.
Roby SmithRepublican · winner · incumbent
52.8%16,125
Marie GleasonDemocrat
47.2%14,418
30,560 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET