PolitiFinder

1970 South Dakota U.S. House District 1 Election

South Dakota · 2 candidates · See every 1970 U.S. House race

Who won the 1970 South Dakota U.S. House District 1 Election?

Frank Denholm won the 1970 South Dakota U.S. House District 1 Election. Frank Denholm received 71,636 popular votes (55.98%). The main challenger was Dexter H Gunderson (44.02%).

See the full head-to-head between Denholm and Gunderson

Denholm +12.0 pts · won by 15,306 votes
Frank DenholmDemocraticWINNER55.98%
71,636 votes
Dexter H GundersonRepublican44.02%
56,330 votes
Popular-vote totals for this U.S. House election come from the Constituency-Level Elections Archive (CLEA) and the official public record.

Data last verified July 28, 2026.