PolitiFinder

1948 Illinois U.S. House District 20 Election

Illinois · 2 candidates · See every 1948 U.S. House race

Who won the 1948 Illinois U.S. House District 20 Election?

Sidney Simpson won the 1948 Illinois U.S. House District 20 Election. Sidney Simpson received 59,067 popular votes (53.07%). The main challenger was Mark J Sullivan (46.93%).

See the full head-to-head between Simpson and Sullivan

Simpson +6.1 pts · won by 6,832 votes
Sidney SimpsonRepublicanWINNER53.07%
59,067 votes
Mark J SullivanDemocratic46.93%
52,235 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.