The 1904 United States House of Representatives elections in South Carolina were held on November 8, 1904, to elect seven representatives Representatives for one two-year terms from the state of South Carolina. All five incumbents who ran were re-elected and the open seats in the 2nd congressional district and 6th congressional district were retained by the Democrats. The composition of the state delegation thus remained solely Democratic.
Incumbent Congressman George Swinton Legaré of the 1st congressional district, in office since 1903, defeated two Republican challengers.
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman Theodore G. Croft of the 2nd congressional district, in office since 1904, did not seek re-election. James O'H. Patterson won the Democratic primary and defeated Republican Isaac Myers in the general election.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| 5,238 | 39.7 | |
| S.G. Mayfield | 5,060 | 38.4 |
| Leon J. Williams | 2,883 | 21.9 |
| Democratic primary runoff | |||
|---|---|---|---|
| Candidate | Votes | % | ±% |
| James O'H. Patterson | 6,654 | 54.7 | +15.0 |
| S.G. Mayfield | 5,520 | 45.3 | +6.9 |
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman Wyatt Aiken of the 3rd congressional district, in office since 1903, defeated I.H. McCalla in the Democratic primary and Republican John Scott in the general election.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| 11,119 | 61.7 | |
| I.H. McCalla | 6,909 | 38.3 |
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman Joseph T. Johnson of the 4th congressional district, in office since 1901, defeated Republican challenger J.D. Adams.
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman David E. Finley of the 5th congressional district, in office since 1899, defeated T. Yancey Williams in the Democratic primary and Republican C.P. White in the general election.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| 9,823 | 62.8 | |
| T. Yancey Williams | 5,809 | 37.2 |
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman Robert B. Scarborough of the 6th congressional district, in office since 1901, opted to retire. J. Edwin Ellerbe, brother of former South Carolina Governor William Haselden Ellerbe, won the Democratic primary and defeated Republican E.H. Deas in the general election.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| 4,923 | 30.1 | |
| 4,808 | 29.4 | |
| 4,205 | 25.7 | |
| George W. Dargan | 2,425 | 14.8 |
| Democratic primary runoff | |||
|---|---|---|---|
| Candidate | Votes | % | ±% |
| J. Edwin Ellerbe | 7,735 | 57.4 | +28.0 |
| J. Willard Ragsdale | 5,730 | 42.6 | +12.5 |
|-| | colspan=5 |Democratic hold|-
Incumbent Democratic Congressman Asbury Francis Lever of the 7th congressional district, in office since 1901, defeated Republican challenger C.C. Jacobs.
|-| | colspan=5 |Democratic hold|-