This is the 2020 race. The latest: 2026 →

2020Final results

2020 election for South Dakota Legislative District 34

South Dakota House of Representatives · South Dakota

2 seats: Mike Derby (R), Jess Olson (R) won.

2 seats
Mike DerbyRepublican · winner
33.5%7,225
Jess OlsonRepublican · winner · incumbent
31.3%6,756
17.7%3,806
17.5%3,776
21,563 votes

Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET

The seat over time

D − R margin in this seat's races around 2020

Races before and after

EvenR+24.72014R+19.92016R+25.12018R+27.92020R+17.22022R+12.32026

Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET