2010Flipped from DemocraticFinal results
2010 election for South Dakota Legislative District 13
South Dakota State Senate · South Dakota
Phyllis M. Heineman (R) won with 56.2% of the vote, defeating Matt Parker (D) by 12.5 points, a seat Democrats won last time.
Phyllis M. HeinemanRepublican · winner
56.2%4,856
Matt ParkerDemocrat
43.8%3,780
8,636 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