1974Final results

1974 election for South Dakota Legislative District 13

Name: 1974 election for South Dakota Legislative District 13
Start: 1974-11-04
Location: South Dakota

South Dakota State Senate · South Dakota

Eugene R. Mahan (D) won with 68.2% of the vote, defeating Barry Nelson (Ind) by 36.4 points.

Eugene R. MahanDemocrat · winner · incumbent

68.2%4,246

31.8%1,980

6,226 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 1974

Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET