2016Final results
2016 election for Iowa House District 31
Iowa House of Representatives · Iowa
Rick Olson (D) won with 55.0% of the vote, defeating Matt Christoffersen (R) by 16.4 points.
Rick OlsonDemocrat · winner · incumbent
55.0%7,160
Matt ChristoffersenRepublican
38.6%5,027
Joe GleasonLibertarian
6.1%794
13,011 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET