1984Final results
1984 election for South Dakota Legislative District 18
South Dakota House of Representatives · South Dakota
2 seats: Edward Vangerpen (R), Gary Bender (R) won.
2 seatsEdward VangerpenRepublican · winner
31.5%5,708
Gary BenderRepublican · winner
31.0%5,624
Clarence TjeerdsmaDemocrat
21.9%3,964
Gary D. BlueDemocrat
15.6%2,835
18,131 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 1984
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET