1972 United States House of Representatives elections in Iowa

Iowa was reapportioned from 7 seats to 6, dividing the old 5th district around Des Moines between its neighbors. Its incumbent, Neal Smith, won again in the south-central Iowa 4th district.

District	Incumbent	Party	First elected	Result	Candidates
Iowa 1	Fred Schwengel	Republican	1966	Incumbent lost re-election. New member elected. Democratic gain.	√ Edward Mezvinsky (Democratic) 53.4% Fred Schwengel (Republican) 45.7% Lee E. Foster (AI) 1.0%
Iowa 2	John C. Culver	Democratic	1964	Incumbent re-elected.	√ John C. Culver (Democratic) 59.2% Theodore R. Ellsworth (Republican) 40.8%
Iowa 3	H. R. Gross	Republican	1948	Incumbent re-elected.	√ H. R. Gross (Republican) 55.7% Lyle D. Taylor (Democratic) 44.3%
Iowa 4	Neal Smith Redistricted from the 5th district	Democratic	1958	Incumbent re-elected.	√ Neal Smith (Democratic) 59.2% John Henry Kyl (Republican) 40.8%
	John Henry Kyl	Republican	1966	Incumbent lost re-election. Republican loss.
Iowa 5	William J. Scherle Redistricted from the 7th district	Republican	1966	Incumbent re-elected.	√ William J. Scherle (Republican) 55.3% Tom Harkin (Democratic) 44.7%
Iowa 6	Wiley Mayne	Republican	1966	Incumbent re-elected.	√ Wiley Mayne (Republican) 52.5% Berkley Bedell (Democratic) 47.5%

Of the 7 Iowa incumbents, 5 were re-elected.

See also

• List of United States Representatives from Iowa
• United States House of Representatives elections, 1972