2018Final results
2018 election for South Dakota Legislative District 4
South Dakota House of Representatives · South Dakota
2 seats: Fred Deutsch (R), John Mills (R) won.
2 seatsFred DeutschRepublican · winner
32.3%5,934
John MillsRepublican · winner · incumbent
28.8%5,285
Kathy TylerDemocrat
21.8%4,002
Jim ChilsonDemocrat
14.6%2,674
Daryl RootLibertarian
2.5%450
Darl RootLibertarian
0.0%7
18,352 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The candidates
Fred Deutsch (R)John Mills (R)Kathy Tyler (D)Jim Chilson (D)
Also on the ballot: Daryl Root (Libertarian), 2.5%; Darl Root (Libertarian), 0.0%