2022Final results
2022 election for South Dakota Legislative District 21
South Dakota State Senate · South Dakota
Erin Tobin (R) won with 81.8% of the vote, defeating Dan Andersson (D) by 63.7 points.
Erin TobinRepublican · winner · incumbent
81.8%7,976
Dan AnderssonDemocrat
18.2%1,771
9,747 votes
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET
The seat over time
D − R margin in this seat's races around 2022
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET