| Year | Democratic | Republican | Other
|
| 2004 | Jeff Hardenbrook: 87,769 | John A. Boehner: 195,923 |
|
| 2002 | Jeff Hardenbrook: 49,444 | John A. Boehner: 119,947 |
|
| 2000 | John G. Parks: 66,293 | John A. Boehner: 179,756 | David R. Shock (L): 3,802
|
| 1998 | John W. Griffin: 52,912 | John A. Boehner: 127,979 |
|
| 1996 | Jeffrey D. Kitchen: 61,515 | John A. Boehner: 165,815 | William Baker (N): 8,613
|
| 1994 | | John A. Boehner: 148,338 |
|
| 1992 | Fred Sennet: 62,033 | John A. Boehner: 176,362 |
|
| 1990 | Gregory V. Jolivette: 63,584 | John A. Boehner*: 99,955 |
|
| 1988 | John W. Griffin: 49,084 | Donald E. "Buz" Lukens: 154,164 |
|
| 1986 | John W. Griffin: 46,195 | Donald E. "Buz" Lukens: 98,475 |
|
| 1984 | John T. Francis: 46,673 | Thomas N. Kindness: 155,200 |
|
| 1982 | John W. Griffin: 49,877 | Thomas N. Kindness: 98,527 |
|
| 1980 | John W. Griffin: 44,162 | Thomas N. Kindness: 139,590 |
|
| 1978 | Luella R. Schroeder: 32,493 | Thomas N. Kindness: 81,156 | George Hahn: 3
|
| 1976 | John W. Griffin: 46,424 | Thomas N. Kindness: 110,775 | Joseph F. Payton: 4,158
|
| 1974 | T. Edward Strinko: 45,701 | Thomas N. Kindness: 51,097 | Don Gingerich: 23,616
|
| 1972 | James D. Ruppert: 73,344 | Walter E. Powell*: 80,050 |
|
| 1970 | | Jackson E. Betts: 90,916 |
|
| 1968 | Marie Baker: 40,898 | Jackson E. Betts: 101,974 |
|
| 1966 | Frank B. Bennett: 38,787 | Jackson E. Betts: 78,933 |
|
| 1964 | Frank B. Bennett: 45,445 | Jackson E. Betts: 73,395 |
|
| 1962 | Morris Laderman: 28,400 | Jackson E. Betts: 66,458 |
|
| 1960 | Virgil M. Gase: 38,871 | Jackson E. Betts: 81,373 |
|
| 1958 | Virgil M. Gase: 39,343 | Jackson E. Betts: 62,232 |
|
| 1956 | Robert M. Corry: 40,716 | Jackson E. Betts: 70,690 |
|
| 1954 | Thomas M. Dowd: 30,592 | Jackson E. Betts: 52,196 |
|
| 1952 | Henry P. Drake: 34,474 | Jackson E. Betts: 75,768 |
|
| 1950 | W. Dexter Hazen: 28,379 | Jackson E. Betts: 47,761 |
|
| 1948 | Andrew T. Durbin: 36,685 | Frederick C. Smith: 43,929 |
|
| 1946 | John T. Siemon: 22,945 | Frederick C. Smith: 40,755 |
|
| 1944 | Roy Warren Roof: 34,494 | Frederick C. Smith: 51,253 |
|
| 1942 | T. Brooks Fletcher: 22,753 | Frederick C. Smith: 33,797 |
|
| 1940 | Kenneth M. Petri: 44,605 | Frederick C. Smith: 49,218 |
|
| 1938 | T. Brooks Fletcher: 33,972 | Frederick C. Smith: 40,772 |
|
| 1936 | T. Brooks Fletcher: 49,668 | Grant E. Mouser Jr.: 42,565 |
|
| 1934 | T. Brooks Fletcher: 39,466 | Gertrude Jones: 36,112 |
|
| 1932 | T. Brooks Fletcher: 45,930 | Grant E. Mouser Jr.: 41,234 |
|
| 1930 | Carl W. Smith: 33,906 | Grant E. Mouser Jr.: 35,663 |
|
| 1928 | T. Brooks Fletcher: 38,651 | Grant E. Mouser Jr.: 42,199 |
|
| 1926 | T. Brooks Fletcher: 30,167 | James R. Hopley: 23,247 |
|
| 1924 | T. Brooks Fletcher: 38,439 | R. Clinton Cole: 33,258 | Charles E. Lukens: 555
|
| 1922 | H. H. Hartmann: 34,105 | R. Clinton Cole: 37,065 |
|
| 1920 | Fred H. Guthery: 36,665 | R. Clinton Cole: 43,473 |
|
