| Year | Democratic | Republican | Other
|
| 2004 | Greg Harris: 111,320 | Steve Chabot: 167,991 |
|
| 2002 | Greg Harris: 60,168 | Steve Chabot: 110,760 |
|
| 2000 | John Cranley: 98,328 | Steve Chabot: 116,768 | David A. Groshoff (L): 3,399
Richard L. Stevenson (N): 1,933
|
| 1998 | Roxanne Qualls: 82,003 | Steve Chabot: 92,421 |
|
| 1996 | Mark P. Longabaugh: 94,719 | Steve Chabot: 118,324 | John G. Halley (N): 5,381
|
| 1994 | David S. Mann: 72,822 | Steve Chabot: 92,997 |
|
| 1992 | David S. Mann: 120,190 | Stephen Grote: 101,498 | James A. Berms: 12,734
|
| 1990 | Charles J. Luken: 83,932 | J. Kenneth Blackwell: 80,362 |
|
| 1988 | Thomas A. Luken: 117,628 | Steve Chabot: 90,738 |
|
| 1986 | Thomas A. Luken: 90,477 | Fred E. Morr: 56,100 |
|
| 1984 | Thomas A. Luken: 121,577 | Norman A. Murdock: 88,859 | Other: 10,222
|
| 1982 | Thomas A. Luken*: 99,143 | John E. Held: 52,658 | James A. Berns (L): 4,386
|
| 1980 | Donald J. Zwick: 38,529 | Willis D. Gradison Jr.*: 124,080 | Scott A. Breen: 3,571
|
| 1978 | Timothy M. Burke: 38,669 | Willis D. Gradison Jr.: 73,593 | Joseph E. May: 1,907
|
| 1976 | William F. Bowen: 56,995 | Willis D. Gradison Jr.: 109,789 | Christopher L. Martinson: 2,732
|
| 1974 | Thomas A. Luken*: 67,685 | Willis D. Gradison Jr.: 70,284 |
|
| 1972 | Carl F. Heiser: 50,575 | William J. Keating: 119,469 |
|
| 1970 | Bailey W. Turner: 39,820 | William J. Keating: 89,169 |
|
| 1968 | Carl F. Heiser: 49,830 | Robert Taft Jr.: 102,219 |
|
| 1966 | John J. Gilligan: 62,580 | Robert Taft Jr.: 70,366 |
|
| 1964 | John J. Gilligan: 74,525 | Carl W. Rich: 69,114 |
|
| 1962 | Monica Nolan: 44,264 | Carl W. Rich: 74,320 |
|
| 1960 | W. Ted Osborne: 62,043 | Gordon H. Scherer: 88,899 |
|
| 1958 | W. Ted Osborne: 54,119 | Gordon H. Scherer: 70,686 |
|
| 1956 | Leonard D. Slutz: 49,701 | Gordon H. Scherer: 91,181 |
|
| 1954 | Mrs. Warwick B. Hobart: 39,421 | Gordon H. Scherer: 71,042 |
|
| 1952 | Walter A. Kelly: 60,015 | Gordon H. Scherer: 96,385 |
|
| 1950 | Rollin H. Everett: 53,760 | Charles H. Elston: 77,507 |
|
| 1948 | Morse Johnson: 69,240 | Charles H. Elston: 73,952 |
|
| 1946 | G. Andrews Espy: 40,594 | Charles H. Elston: 72,909 |
|
| 1944 | Frank J. Richter: 62,617 | Charles H. Elston: 82,373 |
|
| 1942 | William H. Hessler: 33,884 | Charles H. Elston: 54,120 |
|
| 1940 | Joseph A. Dixon: 61,382 | Charles H. Elston: 84,622 |
|
| 1938 | Joseph A. Dixon: 45,536 | Charles H. Elston: 63,285 |
|
| 1936 | Joseph A. Dixon: 71,935 | John B. Hollister: 66,082 |
|
| 1934 | Edwin G. Becker: 42,723 | John B. Hollister: 53,985 |
|
| 1932 | Edward H. Brink: 55,416 | John B. Hollister*: 66,018 |
|
| 1930 | John W. Pattison: 46,974 | Nicholas Longworth: 50,481 |
|
| 1928 | Arthur Espy: 49,880 | Nicholas Longworth: 80,812 |
|
| 1926 | John C. Rogers: 26,511 | Nicholas Longworth: 45,317 | Edward D. Colley: 268
|
| 1924 | Thomas B. Paxton: 36,065 | Nicholas Longworth: 58,125 |
|
| 1922 | Sidney G. Stricker: 30,945 | Nicholas Longworth: 45,253 | Edward L. Hutchins (FL): 3,094
|
| 1920 | John H. Allen: 40,195 | Nicholas Longworth: 57,328 | Edward L. Hutchins (FL): 926
Eli G. Frankenstein: 1,134
|
