1978 Iowa U.S. Senate Election

Iowa · 4 candidates · See every 1978 U.S. Senate race

Who won the 1978 Iowa U.S. Senate Election?

Roger W. Jepsen won the 1978 Iowa U.S. Senate Election. Roger W. Jepsen received 421,598 popular votes (51.13%). The main challenger was Dick Clark (47.91%).

See the full head-to-head between Jepsen and Clark

Jepsen +3.2 pts · won by 26,532 votes

Roger W. Jepsen RepublicanWINNER51.13%

421,598 votes

Dick Clark Democratic47.91%

395,066 votes

Gerald Leo BakerIndependent0.51%

4,223 votes

Ben L. OlsonLibertarian0.45%

3,689 votes

Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified July 28, 2026.