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2010 Iowa U.S. House District 3 Election

Iowa · 3 candidates · See every 2010 U.S. House race

Who won the 2010 Iowa U.S. House District 3 Election?

Leonard L. Boswell won the 2010 Iowa U.S. House District 3 Election. Leonard L. Boswell received 122,147 popular votes (50.73%). The main challenger was Brad Zaun (46.49%).

See the full head-to-head between Boswell and Zaun

Boswell +4.2 pts · won by 10,222 votes
Leonard L. BoswellDemocraticWINNER50.73%
122,147 votes
Brad ZaunRepublican46.49%
111,925 votes
Rebecca Williamsonsocialist workers2.6%
6,258 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.