| |- ! | William H. Larrabee | | Democratic | 1930 | Incumbent re-elected. | nowrap | |- ! | Louis Ludlow | | Democratic | 1928 | Incumbent re-elected. | nowrap | |} Iowa |- ! | William F. Kopp | | Republican | 1920 | | Incumbent lost re-election.New member elected.Democratic gain. | nowrap | |- ! | Bernhard M. Jacobsen | | Democratic | 1930 | Incumbent re-elected. | nowrap | |- ! | Thomas J. B. Robinson | | Republican | 1922 | | Incumbent lost re-election.New member elected.Democratic gain. | nowrap | |- ! | Gilbert N. Haugen | | Republican | 1898 | | Incumbent lost re-election.New member elected.Democratic gain. | nowrap | |- ! rowspan=3 | | Cyrenus Cole | | Republican | 1920 | | Incumbent retired.Republican loss. | rowspan=3 nowrap | |- | Lloyd Thurston | | Republican | 1924 | Incumbent re-elected. |- | C. William Ramseyer | | Republican | 1914 | | Incumbent lost renomination.Republican loss. |- ! | Cassius C. Dowell | | Republican | 1914 | Incumbent re-elected. | nowrap | |- ! | Charles Edward Swanson | | Republican | 1928 | | Incumbent lost re-election.New member elected.Democratic gain. | nowrap | |- ! | Fred C. Gilchrist | | Republican | 1930 | Incumbent re-elected. | nowrap | |- ! | Ed H. Campbell | | Republican | 1928 | | Incumbent lost re-election.New member elected.Democratic gain. | nowrap | |} Kansas The eighth district was eliminated when the state was reapportioned from eight to seven districts. Two incumbent Republicans lost re-election. One incumbent Republican lost renomination and his seat was won by the incumbent Democrat from the district that was merged into his. |- ! rowspan=2 | | William P. Lambertson | | Republican | 1928 | Incumbent re-elected. | rowspan=2 nowrap | |- | James G. Strong | | Republican | 1918 | | Incumbent lost renomination.Republican loss. |- ! | Ulysses Samuel Guyer | | Republican | 1926 | Incumbent re-elected. | nowrap | |- ! | Harold C. McGugin | | Republican | 1930 | Incumbent re-elected. | nowrap | |- ! | Homer Hoch | | Republican | 1918 | | Incumbent lost re-election.New member elected.Democratic gain. | nowrap | |- ! | William Augustus Ayres | | Democratic | 1922 | Incumbent re-elected. | nowrap | |-