The 1920 United States House of Representatives elections in South Carolina were held on November 2, 1920, to select seven Representatives for two-year terms from the state of South Carolina. Four incumbents were re-elected and all three open seats were retained by the Democrats. The composition of the state delegation thus remained solely Democratic.
1st congressional district Incumbent Democratic Congressman Richard S. Whaley of the 1st congressional district, in office since 1913, opted to retire. W. Turner Logan defeated F.F. Carroll in the Democratic primary and Republican challenger Saspartas in the general election.
Democratic primary Democratic primaryCandidateVotes% W. Turner Logan 6,246 67.0 F.F. Carroll 3,071 33.0
General election results
| colspan=5 |Democratic hold
2nd congressional district Incumbent Democratic Congressman James F. Byrnes of the 2nd congressional district, in office since 1911, was unopposed in his bid for re-election.
General election results
| colspan=5 |Democratic hold
3rd congressional district Incumbent Democratic Congressman Frederick H. Dominick of the 3rd congressional district, in office since 1917, defeated W.W. Bradley in the Democratic primary and was unopposed in the general election.
Democratic primary Democratic primaryCandidateVotes% Frederick H. Dominick 10,454 61.5 W.W. Bradley 6,544 38.5
General election results
| colspan=5 |Democratic hold
4th congressional district Incumbent Democratic Congressman Samuel J. Nicholls of the 4th congressional district, in office since 1915, opted to retire. John J. McSwain won the Democratic primary and was unopposed in the general election.
Democratic primary Democratic primaryCandidateVotes% John J. McSwain 9,092 50.0 Albert E. Hill 4,401 24.2 D.B. Traxler 3,302 18.2 Jack Wilson 1,386 7.6
General election results
| colspan=5 |Democratic hold
5th congressional district Incumbent Democratic Congressman William F. Stevenson of the 5th congressional district, in office since 1917, was unopposed in his bid for re-election.
General election results
| colspan=5 |Democratic hold
6th congressional district Incumbent Democratic Congressman Philip H. Stoll of the 6th congressional district, in office since 1919, was unopposed in his bid for re-election.
General election results
| colspan=5 |Democratic hold
7th congressional district Incumbent Democratic Congressman Edward C. Mann of the 7th congressional district, in office since 1919, was defeated in the Democratic primary by Hampton P. Fulmer. He defeated Republican challenger L.A. Hawkins in the general election.
Democratic primary Democratic primaryCandidateVotes% Hampton P. Fulmer 7,286 55.3 Edward C. Mann 5,891 44.7
General election results
| colspan=5 |Democratic hold
See also 1920 United States House of Representatives elections 1920 South Carolina gubernatorial election South Carolina's congressional districts
References
"Report of the Secretary of State to the General Assembly of South Carolina. Part II." Reports of State Officers Boards and Committees to the General Assembly of the State of South Carolina. Volume I. Columbia, SC: 1921, pp. 62–65.