2020Final results
2020 election for Wisconsin Assembly District 15
Wisconsin State Assembly · Wisconsin
Joe Sanfelippo (R) won with 54.7% of the vote, defeating Jessica Katzenmeyer (D) by 9.6 points.
Joe SanfelippoRepublican · winner · incumbent
54.7%17,133
Jessica KatzenmeyerDemocrat
45.1%14,134
31,308 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