1978Final results
1978 election for South Dakota Legislative District 4
South Dakota State Senate · South Dakota
Jake Krull (D) won with 56.1% of the vote, defeating Thomas E. Roby (R) by 12.3 points.
Jake KrullDemocrat · winner · incumbent
56.1%4,190
Thomas E. RobyRepublican
43.9%3,274
7,464 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET