| Year | Democratic | Republican | Other
|
| 2004 | Brian R. Thomas: 88,560 | Robert W. Ney: 173,499 |
|
| 2002 | | Robert W. Ney: 125,546 |
|
| 2000 | Marc D. Guthrie: 79,232 | Robert W. Ney: 152,325 | John R. Bargar Sr. (L): 4,948
|
| 1998 | Robert L. Burch Jr.: 74,571 | Robert W. Ney: 113,119 |
|
| 1996 | Robert L. Burch Jr.: 108,332 | Robert W. Ney: 117,365 | Margaret Chitti (N): 8,146
|
| 1994 | Gregory L. DiDonato: 87,926 | Robert W. Ney: 103,115 |
|
| 1992 | Douglas Applegate: 166,189 | Bill Ress: 77,229 |
|
| 1990 | Douglas Applegate: 120,782 | John A. Hales: 41,823 |
|
| 1988 | Douglas Applegate: 151,306 | William C. Abraham: 43,628 |
|
| 1986 | Douglas Applegate: 126,526 | |
|
| 1984 | Douglas Applegate: 155,759 | Kenneth P. Burt Jr.: 49,356 |
|
| 1982 | Douglas Applegate: 128,665 | |
|
| 1980 | Douglas Applegate: 134,835 | Gary L. Hammersley: 42,354 |
|
| 1978 | Douglas Applegate: 71,894 | William J. Ress: 48,931 |
|
| 1976 | Douglas Applegate*: 116,901 | Ralph R. McCoy: 45,735 | William Crabbe: 21,537
John Dwight Bashline: 1,661
|
| 1974 | Wayne L. Hays: 90,447 | Ralph H. Romig: 47,385 |
|
| 1972 | Wayne L. Hays: 128,663 | Robert Stewart: 54,572 |
|
| 1970 | Wayne L. Hays: 82,071 | Robert Stewart: 38,104 |
|
| 1968 | Wayne L. Hays: 96,711 | James F. Sutherland: 63,747 |
|
| 1966 | Wayne L. Hays: 73,657 | William H. Weir: 41,165 |
|
| 1964 | Wayne L. Hays: 94,768 | Allen J. Dalrymple: 42,960 |
|
| 1962 | Wayne L. Hays: 66,327 | John J. Carrigg: 42,336 |
|
| 1960 | Wayne L. Hays: 96,474 | Walter J. Hunston: 50,698 |
|
| 1958 | 'Wayne L. Hays: 88,813 | Francis Wallace: 35,322 |
|
| 1956 | Wayne L. Hays: 78,962 | Joseph Miller: 53,627 |
|
| 1954 | Wayne L. Hays: 59,165 | Walter J. Hunston: 44,143 |
|
| 1952 | Wayne L. Hays: 78,277 | Clarence L. Wetzel: 62,081 |
|
| 1950 | Wayne L. Hays: 58,295 | Robert L. Quinn: 56,508 |
|
| 1948 | Wayne L. Hays: 65,475 | Earl R. Lewis: 55,455 |
|
| 1946 | Eugene A. Blum | Earl R. Lewis: 55,140 |
|
| 1944 | Ross Michener: 63,098 | Earl R. Lewis: 65,847 |
|
| 1942 | Lawrence E. Imhoff: 37,951 | Earl R. Lewis: 43,279 |
|
| 1940 | Lawrence E. Imhoff: 79,718 | Earl R. Lewis: 66,666 |
|
| 1938 | Lawrence E. Imhoff: 55,809 | Earl R. Lewis: 56,468 |
|
| 1936 | Lawrence E. Imhoff: 83,052 | Earl R. Lewis: 54,119 |
|
| 1934 | Lawrence E. Imhoff: 49,160 | B. Franklin Murphy: 39,642 |
|
| 1932 | Lawrence E. Imhoff: 56,562 | B. Franklin Murphy: 56,010 |
|
| 1930 | Emerson Campbell: 30,815 | B. Franklin Murphy: 47,096 |
|
| 1928 | John J. Whitacre: 31,422 | B. Franklin Murphy: 71,378 | Frank Sepech (W): 317
Jacob S. Coxey Sr. (S): 2
|
| 1926 | John F. Nolan: 19,341 | B. Franklin Murphy: 36,599 |
|
| 1924 | James M. Barton: 26,656 | B. Franklin Murphy: 56,206 | Charles Coleman: 1,931
|
| 1922 | Marion Huffman: 25,449 | B. Franklin Murphy: 41,572 | Jacob S. Coxey Sr.: 5,907
|
| 1920 | Albert O. Barnes: 32,802 | B. Franklin Murphy: 52,862 |
|
