Iowa's 1st congressional district Recent election results Recent election results

| Year_ | Party_Affiliation_1 | Winner | Number_of_Votes_3 | Party_Affiliation_4 | Loser | Number_of_Votes_6 | Percentage_of_Votes_ |
|---|---|---|---|---|---|---|---|
| 1934 | Democrat | Edward C. Eicher | 48544 | Republican | E. R. Hicklin | 39047 | 55% - 44% |
| 1936 | Democrat | Edward C. Eicher | 55721 | Republican | John N. Calhoun | 53474 | 51% - 49% |
| 1938 | Republican | Thomas E. Martin | 46636 | Democrat | James P. Gaffney | 33765 | 58% - 42% |
| 1940 | Republican | Thomas E. Martin | 70120 | Democrat | Mrs. Zoe S. Nabers | 46040 | 60% - 40% |
| 1942 | Republican | Thomas E. Martin | 55139 | Democrat | Vern W. Nall | 32893 | 61% - 37% |
| 1944 | Republican | Thomas E. Martin | 72729 | Democrat | Clair A. Williams | 60048 | 55% - 45% |
| 1946 | Republican | Thomas E. Martin | 52488 | Democrat | Clair A. Williams | 32849 | 62% - 38% |
| 1948 | Republican | Thomas E. Martin | 70959 | Democrat | James D. France | 60860 | 53% - 46% |