| Year | Democratic | Republican | Other
|
| 2004 | Ben Konop: 115,422 | Michael G. Oxley: 163,459 |
|
| 2002 | Jim Clark: 57,726 | Michael G. Oxley: 120,001 |
|
| 2000 | Daniel L. Dickman: 67,330 | Michael G. Oxley: 156,510 | Ralph Mullinger (L): 8,278
|
| 1998 | Paul Anthony McClain: 63,529 | Michael G. Oxley: 112,011 |
|
| 1996 | Paul Anthony McClain: 69,096 | Michael G. Oxley: 147,608 | Michael McCaffery (N): 11,057
|
| 1994 | | Michael G. Oxley: 139,841 |
|
| 1992 | Raymond M. Ball: 92,608 | Michael G. Oxley: 147,346 |
|
| 1990 | Thomas E. Burkhart: 64,467 | Michael G. Oxley: 103,897 |
|
| 1988 | | Michael G. Oxley: 160,900 |
|
| 1986 | Clem T. Cratty: 26,320 | Michael G. Oxley: 115,751 | Raven L. Workman: 11,997
|
| 1984 | William O. Sutton: 47,018 | Michael G. Oxley: 162,199 |
|
| 1982 | Bob Moon: 57,564 | Michael G. Oxley: 105,087 |
|
| 1980 | Gerry Tebben: 51,150 | Tennyson Guyer: 133,795 |
|
| 1978 | John W. Griffin: 39,360 | Tennyson Guyer: 85,575 |
|
| 1976 | Clinton G. Dorsey: 51,784 | Tennyson Guyer: 121,173 |
|
| 1974 | James L. Gehrlich: 51,065 | Tennyson Guyer: 81,674 |
|
| 1972 | Dimitri Nicholas: 65,216 | Tennyson Guyer: 109,612 |
|
| 1970 | Donald B. Laws: 45,619 | William M. McCulloch: 82,521 |
|
| 1968 | | William M. McCulloch: 129,435 |
|
| 1966 | Robert H. Mihlbaugh: 37,855 | William M. McCulloch: 66,142 |
|
| 1964 | Robert H. Mihlbaugh: 64,667 | William M. McCulloch: 81,204 |
|
| 1962 | Marjorie Conrad Struns: 32,866 | William M. McCulloch: 77,790 |
|
| 1960 | Joseph J. Murphy: 52,797 | William M. McCulloch: 99,683 |
|
| 1958 | Marjorie Conrad Struns: 93,401 | William M. McCulloch: 73,448 |
|
| 1956 | Ortha O. Barr Jr.: 42,416 | William M. McCulloch: 93,607 |
|
| 1954 | Forrest L. Blankenship: 32,474 | William M. McCulloch: 67,762 |
|
| 1952 | Carleton Carl Reiser: 43,426 | William M. McCulloch: 93,442 |
|
| 1950 | Carleton Carl Reiser: 32,686 | William M. McCulloch: 65,640 |
|
| 1948 | Earl Ludwig: 45,534 | William M. McCulloch*: 57,321 |
|
| 1946 | Merl J. Bragg: 32,160 | Robert F. Jones: 64,718 |
|
| 1944 | Earl Ludwig: 42,983 | Robert F. Jones: 67,829 |
|
| 1942 | Clarence C. Miller: 22,567 | Robert F. Jones: 39,275 |
|
| 1940 | Clarence C. Miller: 47,765 | Robert F. Jones: 65,534 |
|
| 1938 | William B. Swonger: 33,284 | Robert F. Jones: 56,399 | John C. Fisher: 4,616
|
| 1936 | Frank LeB. Kloeb: 61,927 | Robert W. Yurner: 53,352 |
|
| 1934 | Frank LeB. Kloeb: 48,613 | Guy D. Hawley: 41,504 |
|
| 1932 | Frank LeB. Kloeb: 59,003 | John L. Cable: 49,100 |
|
| 1930 | Gainor Jennings: 37,673 | John L. Cable: 43,104 |
|
| 1928 | William Klinger: 41,677 | John L. Cable: 56,291 |
|
| 1926 | Benjamin F. Welty: 31,293 | William T. Fitzgerald: 32,236 |
|
| 1924 | Hugh T. Mathers: 42,652 | William T. Fitzgerald: 43,984 |
|
| 1922 | J. Henry Goeke: 35,916 | John L. Cable: 43,251 |
|
| 1920 | Benjamin F. Welty: 45,489 | John L. Cable: 50,576 |
|
