Jr. | | Democratic | 1971 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |- ! | Carl D. Perkins | | Democratic | 1948 | Incumbent re-elected. | nowrap | |} Louisiana Louisiana stayed at eight house seats following the 1970 census, but the Eighth District's boundaries were radically altered. New governor Edwin W. Edwards ordered the district to take in territory far to the south and east of its traditional base of Alexandria, which included many African-American and progressive white voters. The change was largely regarded as an election deal between Edwards and former Rep. Gillis Long, who finished third in the Democratic Primary in the 1971 Louisiana Governor's Election. Long easily won back the Eighth District seat he lost in 1964. |- ! | F. Edward Hébert | | Democratic | 1940 | Incumbent re-elected. | nowrap | |- ! | Hale Boggs | | Democratic | 19401942 1946 | Incumbent re-elected posthumously. | nowrap | |- ! | Patrick T. Caffery | | Democratic | 1968 | | Incumbent retired.New member elected.Republican gain. | nowrap | |- ! | Joe Waggonner | | Democratic | 1961 | Incumbent re-elected. | nowrap | |- ! | Otto Passman | | Democratic | 1946 | Incumbent re-elected. | nowrap | |- ! | John Rarick | | Democratic | 1966 | Incumbent re-elected. | nowrap | |- ! | John Breaux | | Democratic | 1972 | Incumbent re-elected. | nowrap | |- ! | Speedy Long | | Democratic | 1964 | | Incumbent retired.New member elected.Democratic hold. | nowrap | |} Maine |- ! | Peter Kyros | | Democratic | 1966 | Incumbent re-elected. | nowrap | |- ! | William Hathaway | | Democratic | 1964 | | Retired to run for U.S. Senator.New member elected.Republican gain. | nowrap | |} Maryland Maryland's redistricting eliminated a seat in Baltimore in favor of an additional seat in the DC suburbs. |- ! | William Oswald Mills | | Republican | 1971 | Incumbent re-elected. | nowrap | |- ! | Clarence Long | | Democratic | 1962 | Incumbent re-elected. | nowrap | |- ! rowspan=2 | | Edward Garmatz | | Democratic | 1947 | | Incumbent retired.Democratic loss. | rowspan=2 nowrap | |- | Paul Sarbanes | | Democratic | 1970 | Incumbent re-elected. |- ! | colspan=3 | None (district