2006Final results
2006 election for South Dakota Legislative District 31
South Dakota State Senate · South Dakota
Jerry Apa (R) won with 61.7% of the vote, defeating Karen Ballert (Ind) by 23.3 points.
Jerry ApaRepublican · winner · incumbent
61.7%5,982
Karen BallertIndependent
38.3%3,721
9,703 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 2006
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET