1990Final results
1990 election for South Dakota Legislative District 5
South Dakota State Senate · South Dakota
Scott Heidepriem (R) won with 61.1% of the vote, defeating Joanne Lockner (D) by 22.3 points.
Scott HeidepriemRepublican · winner
61.1%5,035
Joanne LocknerDemocrat
38.9%3,202
8,237 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 1990
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET