Iowa's 5th congressional district is an obsolete congressional district in the U.S. state of Iowa.
The district was last represented by Republican Steve King.
The district became obsolete for the 113th Congress in 2013 as Iowa lost a seat in the U.S. House of Representatives redistricting based upon results from the 2010 Census. Official redistricting maps divided the territory in this district in half, attaching the northern half to the 4th district and the southern half to the 3rd district
Iowa's 5th Congressional District was redistricted in 1942. U.S. Representative Karl M. LeCompte became the representative of Iowa's 4th Congressional District, and U.S. Representative Paul H. Cunningham was the representative from Iowa's 6th Congressional District.
Iowa's 5th Congressional District was also redistricted in 1972. U.S. Representative Neal Smith was taken out of Iowa's 5th Congressional District and put in the 4th Congressional District. U.S. Representative William J. Scherle was taken out of Iowa's 7th Congressional District (which was permanently removed) and put into the 5th Congressional District where he ran against now U.S. Senator Tom Harkin.