The 1928 United States House of Representatives elections in South Carolina were held on November 6, 1928, to select seven Representatives for two-year terms from the state of South Carolina. All seven incumbents were re-elected and the composition of the state delegation remained solely Democratic.
Incumbent Democratic Congressman Thomas S. McMillan of the 1st congressional district, in office since 1925, won the Democratic primary and was unopposed in the general election.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| 8,379 | 63.8 | |
| I. Shep Hutto | 3,756 | 28.6 |
| James DeTreville | 567 | 4.3 |
| Patrick H. Kennedy | 427 | 3.3 |
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman Butler B. Hare of the 2nd congressional district, in office since 1925, was unopposed in his bid for re-election.
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman Frederick H. Dominick of the 3rd congressional district, in office since 1917, was unopposed in his bid for re-election.
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman John J. McSwain of the 4th congressional district, in office since 1921, was unopposed in his bid for re-election.
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman William F. Stevenson of the 5th congressional district, in office since 1917, defeated Zeb V. Davidson in the Democratic primary and was unopposed in the general election.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| 13,810 | 60.5 | |
| Zeb V. Davidson | 9,023 | 39.5 |
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman Allard H. Gasque of the 6th congressional district, in office since 1923, won the Democratic primary and was unopposed in his bid for re-election.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| 14,780 | 71.0 | |
| Earl Ellerbe | 3,259 | 15.6 |
| Joel I. Allen | 2,793 | 13.4 |
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman Hampton P. Fulmer of the 7th congressional district, in office since 1921, defeated Ernest M. Dupre in the Democratic primary and was unopposed in the general election.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| 14,956 | 67.4 | |
| Ernest M. Dupre | 7,241 | 32.6 |
|-| | colspan=5 |Democratic hold|-