Republican | 1964 | | Incumbent died.New member elected.Republican hold. | nowrap | |- ! | Joseph M. McDade | | Republican | 1962 | Incumbent re-elected. | nowrap | |- ! | Dan Flood | | Democratic | 19441946 19481952 1954 | Incumbent re-elected. | nowrap | |- ! | J. Irving Whalley | | Republican | 1960 | Incumbent re-elected. | nowrap | |- ! | Lawrence Coughlin | | Republican | 1968 | Incumbent re-elected. | nowrap | |- ! | William S. Moorhead | | Democratic | 1958 | Incumbent re-elected. | nowrap | |- ! | Fred B. Rooney | | Democratic | 1963 | Incumbent re-elected. | nowrap | |- ! | Edwin Duing Eshleman | | Republican | 1966 | Incumbent re-elected. | nowrap | |- ! | Herman T. Schneebeli | | Republican | 1960 | Incumbent re-elected. | nowrap | |- ! | Robert J. Corbett | | Republican | 19381940 1944 | Incumbent re-elected. | nowrap | |- ! | George Atlee Goodling | | Republican | 19601964 1966 | Incumbent re-elected. | nowrap | |- ! | Joseph M. Gaydos | | Democratic | 1968 | Incumbent re-elected. | nowrap | |- ! | John Herman Dent | | Democratic | 1958 | Incumbent re-elected. | nowrap | |- ! | John P. Saylor | | Republican | 1949 | Incumbent re-elected. | nowrap | |- ! | Albert W. Johnson | | Republican | 1963 | Incumbent re-elected. | nowrap | |- ! | Joseph P. Vigorito | | Democratic | 1964 | Incumbent re-elected. | nowrap | |- ! | Frank M. Clark | | Democratic | 1954 | Incumbent re-elected. | nowrap | |- ! | Thomas E. Morgan | | Democratic | 1944 | Incumbent re-elected. | nowrap | |- ! | James G. Fulton | | Republican | 1944 | Incumbent re-elected. | nowrap | |} Rhode Island |- ! | Fernand St. Germain | | Democratic | 1960 | Incumbent re-elected. | nowrap | |- ! | Robert Tiernan | | Democratic | 1967 | Incumbent re-elected. | nowrap | |} South Carolina |- ! | L. Mendel Rivers | | Democratic | 1940 | Incumbent re-elected. | nowrap | |- ! | Albert Watson | | Republican | 1962 | | Incumbent retired to run for Governor of South Carolina.New member elected.Republican