1978Final results
1978 election for Wisconsin Senate District 21
Wisconsin State Senate · Wisconsin
Joseph Strohl (D) won with 64.4% of the vote, defeating Michelle Olley (R) by 28.7 points.
Joseph StrohlDemocrat · winner
64.4%25,659
Michelle OlleyRepublican
35.6%14,202
39,862 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET