The 1956 United States House of Representatives elections in South Carolina were held on November 6, 1956, to select six Representatives for two-year terms from the state of South Carolina. All five incumbents who ran were re-elected and the open seat in the 5th congressional district was retained by the Democrats. The composition of the state delegation thus remained solely Democratic.
1st congressional district Incumbent Democratic Congressman L. Mendel Rivers of the 1st congressional district, in office since 1941, was unopposed in his bid for re-election.
General election results
| colspan=5 |Democratic hold
2nd congressional district Incumbent Democratic Congressman John J. Riley of the 2nd congressional district, in office since 1951, was unopposed in his bid for re-election.
General election results
| colspan=5 |Democratic hold
3rd congressional district Incumbent Democratic Congressman William Jennings Bryan Dorn of the 3rd congressional district, in office since 1951, defeated Republican challenger Maka Knox.
General election results
| colspan=5 |Democratic hold
4th congressional district Incumbent Democratic Congressman Robert T. Ashmore of the 4th congressional district, in office since 1953, defeated Republican challenger Dan H. Wallace, Jr.
General election results
| colspan=5 |Democratic hold
5th congressional district Incumbent Democratic Congressman James P. Richards of the 5th congressional district, in office since 1933, opted to retire. Robert W. Hemphill defeated Thomas S. Gettys in the Democratic primary and was unopposed in the general election.
Democratic primary
Democratic primaryCandidateVotes% Robert W. Hemphill 28,424 59.0 Thomas S. Gettys 19,760 41.0
General election results
| colspan=5 |Democratic hold
6th congressional district Incumbent Democratic Congressman John L. McMillan of the 6th congressional district, in office since 1939, was unopposed in his bid for re-election.
General election results
| colspan=5 |Democratic hold
See also United States House of Representatives elections, 1956 United States Senate election in South Carolina, 1956 United States Senate special election in South Carolina, 1956 South Carolina's congressional districts
References
"Supplemental Report of the Secretary of State to the General Assembly of South Carolina." Reports and Resolutions of South Carolina to the General Assembly of the State of South Carolina. Volume I. Columbia, SC: 1957, pp. 10–12.