page_title: 2018 United States House of Representatives elections in Iowa
section_title: Results
hierarchical_section_title: 2018 United States House of Representatives elections in Iowa / District 3 / Democratic primary / Results
context_page_description: The 2018 United States House of Representatives elections in Iowa were held on November 6, 2018, to elect the four U.S. Representatives from the state of Iowa, one from each of the state's four congressional districts. The elections coincided with the gubernatorial election, as well as other elections to the House of Representatives, elections to the United States Senate, and various state and local elections. The state congressional delegation flipped from a 3–1 Republican majority to a 3–1 Democratic majority. The Democrats last won the majority of seats in the 2010 election.
caption: 2018 Iowa's 3rd congressional district Democratic primary results by county:  Map legend   Axne—70–80%   Axne—60–70%   Axne—50–60%   Mauro—40–50%