| 1938 | Incumbent re-elected. | nowrap | |- ! | Clyde T. Ellis | | Democratic | 1938 | Incumbent re-elected. | nowrap | |- ! | William Fadjo Cravens | | Democratic | 1939 | Incumbent re-elected. | nowrap | |- ! | David D. Terry | | Democratic | 1933 | Incumbent re-elected. | nowrap | |- ! | William F. Norrell | | Democratic | 1938 | Incumbent re-elected. | nowrap | |- ! | Wade H. Kitchens | | Democratic | 1936 | | Incumbent lost renomination.New member elected.Democratic hold. | nowrap | |} California |- ! | Clarence F. Lea | | Democratic | 1916 | Incumbent re-elected. | nowrap | |- ! | Harry Lane Englebright | | Republican | 1926 | Incumbent re-elected. | nowrap | |- ! | Frank H. Buck | | Democratic | 1932 | Incumbent re-elected. | nowrap | |- ! | Franck R. Havenner | | Democratic | 1936 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | Richard J. Welch | | Republican | 1926 | Incumbent re-elected. | nowrap | |- ! | Albert E. Carter | | Republican | 1924 | Incumbent re-elected. | nowrap | |- ! | John H. Tolan | | Democratic | 1934 | Incumbent re-elected. | nowrap | |- ! | Jack Z. Anderson | | Republican | 1938 | Incumbent re-elected. | nowrap | |- ! | Bertrand W. Gearhart | | Republican | 1934 | Incumbent re-elected. | nowrap | |- ! | Alfred J. Elliott | | Democratic | 1937 | Incumbent re-elected. | nowrap | |- ! | John Carl Hinshaw | | Republican | 1938 | Incumbent re-elected. | nowrap | |- ! | Jerry Voorhis | | Democratic | 1936 | Incumbent re-elected. | nowrap | |- ! | Charles Kramer | | Democratic | 1932 | Incumbent re-elected. | nowrap | |- ! | Thomas F. Ford | | Democratic | 1932 | Incumbent re-elected. | nowrap | |- ! | John M. Costello | | Democratic | 1934 | Incumbent re-elected. | nowrap | |- ! | Leland M. Ford | | Republican | 1938 | Incumbent re-elected. | nowrap | |- ! | Lee E. Geyer | | Democratic | 1938 | Incumbent re-elected. | nowrap | |- ! | Thomas M. Eaton | |