PolitiFinder

1980 California U.S. House District 18 Election

California · 2 candidates · See every 1980 U.S. House race

Who won the 1980 California U.S. House District 18 Election?

William M. Thomas won the 1980 California U.S. House District 18 Election. William M. Thomas received 126,046 popular votes (71.03%). The main challenger was Mary Pat Timmermans (28.97%).

See the full head-to-head between Thomas and Timmermans

Thomas +42.1 pts · won by 74,631 votes
William M. ThomasRepublicanWINNER71.03%
126,046 votes
Mary Pat TimmermansDemocratic28.97%
51,415 votes
Popular-vote totals for U.S. House elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified July 28, 2026.