2018Final results
2018 election for Iowa Senate District 3
Iowa State Senate · Iowa
Jim Carlin (R) won with 64.7% of the vote, defeating David Dawson (D) by 29.6 points.
Jim CarlinRepublican · winner
64.7%16,366
David DawsonDemocrat
35.1%8,884
25,284 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