2010Final results
2010 election for Iowa Senate District 11
Iowa State Senate · Iowa
Bill Dotzler (D) won with 63.0% of the vote, defeating Ron Welper (R) by 26.1 points.
Bill DotzlerDemocrat · winner · incumbent
63.0%10,459
Ron WelperRepublican
36.9%6,126
16,600 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET