2018Final results
2018 election for South Dakota Legislative District 6
South Dakota State Senate · South Dakota
Ernie Otten (R) won with 65.1% of the vote, defeating Teresa Ann Robbins (D) by 30.2 points.
Ernie OttenRepublican · winner · incumbent
65.1%6,945
Teresa Ann RobbinsDemocrat
34.9%3,725
10,670 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