The 4th district of the Iowa House of Representatives is a legislative district in Iowa, composed of Lyon County and part of Sioux County.

Representatives The district has been represented by: Forest Davis, 1933–1935 Robert K. Beck, 1953–1955 Walter W. P. Kruse, 1971–1973 Rollin Edelen, 1973–1975 Donald W. Spencer, 1975–1979 Lee Warren Holt, 1979–1983 Wayne D. Bennett, 1983–1993 Ralph Klemme, 1993–2003 Dwayne Alons, 2003–2014 John Kooiker, 2015–2017 Skyler Wheeler, 2017–

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