The 1974 United States House of Representatives elections in South Carolina were held on November 5, 1974, to select six Representatives for two-year terms from the state of South Carolina. The primary elections were held on July 16 and the runoff elections were held two weeks later on July 30. Three incumbents were re-elected, Democrat John Jenrette defeated incumbent Republican Edward Lunn Young in the 6th district and the two open seats in the 3rd and 5th districts were retained by the Democrats. The composition of the state delegation after the elections was five Democrats and one Republican.
| Election Name: | 1974 South Carolina's 1st congressional district election |
| Country: | South Carolina |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1972 United States House of Representatives elections in South Carolina#District 1 |
| Previous Year: | 1972 |
| Election Date: | November 5th, 1974 |
| Next Election: | 1976 United States House of Representatives elections in South Carolina#District 1 |
| Next Year: | 1976 |
| Image1: | Mendel_Jackson_Davis.jpg |
| Nominee1: | Mendel J. Davis |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 60,142 |
| Percentage1: | 72.2% |
| Nominee2: | George B. Rast |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 22,000 |
| Percentage2: | 26.4% |
| Map Size: | 250px |
| U.S. Representative | |
| Before Election: | Mendel J. Davis |
| Before Party: | Democratic Party (United States) |
| After Election: | Mendel J. Davis |
| After Party: | Democratic Party (United States) |
Incumbent Democratic Congressman Mendel Jackson Davis of the 1st congressional district, in office since 1971, defeated Republican challenger George B. Rast.
|-| | colspan=5 |Democratic hold|-
| Election Name: | 1974 South Carolina's 2nd congressional district election |
| Country: | South Carolina |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1972 United States House of Representatives elections in South Carolina#District 2 |
| Previous Year: | 1972 |
| Election Date: | November 5th, 1974 |
| Next Election: | 1976 United States House of Representatives elections in South Carolina#District 2 |
| Next Year: | 1976 |
| Image1: | Congressman Floyd Spence 1976.jpg |
| Nominee1: | Floyd Spence |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 58,936 |
| Percentage1: | 56.1% |
| Nominee2: | Matthew J. Perry |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 45,205 |
| Percentage2: | 43.0% |
| Map Size: | 250px |
| U.S. Representative | |
| Before Election: | Floyd Spence |
| Before Party: | Republican Party (United States) |
| After Election: | Floyd Spence |
| After Party: | Republican Party (United States) |
Incumbent Republican Congressman Floyd Spence of the 2nd congressional district, in office since 1971, defeated Democratic challenger Matthew J. Perry.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| Matthew J. Perry | 31,360 | 57.5 |
| Cole Blease Graham | 23,189 | 42.5 |
|-| | colspan=5 |Republican hold|-
| Election Name: | 1974 South Carolina's 3rd congressional district election |
| Country: | South Carolina |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1972 United States House of Representatives elections in South Carolina#District 3 |
| Previous Year: | 1972 |
| Election Date: | November 5th, 1974 |
| Next Election: | 1976 United States House of Representatives elections in South Carolina#District 3 |
| Next Year: | 1976 |
| Image1: | Congressman Butler Derrick.jpg |
| Nominee1: | Butler Derrick |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 55,120 |
| Percentage1: | 61.8% |
| Nominee2: | Marshall Parker |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 34,036 |
| Percentage2: | 38.2% |
| Map Size: | 250px |
| U.S. Representative | |
| Before Election: | Butler Derrick |
| Before Party: | Democratic Party (United States) |
| After Election: | Butler Derrick |
| After Party: | Democratic Party (United States) |
Incumbent Democratic Congressman William Jennings Bryan Dorn of the 3rd congressional district, in office since 1951, chose to not seek re-election and instead made an unsuccessful run for governor. Butler Derrick won the Democratic primary and defeated Republican Marshall Parker in the general election.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| 36,501 | 64.7 | |
| Jack M. McIntosh | 13,751 | 24.4 |
| George M. Jones | 6,138 | 10.9 |
|-| | colspan=5 |Democratic hold|-
| Election Name: | 1974 South Carolina's 4th congressional district election |
| Country: | South Carolina |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1972 United States House of Representatives elections in South Carolina#District 4 |
| Previous Year: | 1972 |
| Election Date: | November 5th, 1974 |
| Next Election: | 1976 United States House of Representatives elections in South Carolina#District 4 |
| Next Year: | 1976 |
| Image1: | Congressman James Mann.jpg |
| Nominee1: | James R. Mann |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 45,070 |
| Percentage1: | 63.2% |
| Nominee2: | Robert Watkins |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 26,193 |
| Percentage2: | 36.8% |
| Map Size: | 250px |
| U.S. Representative | |
| Before Election: | James R. Mann |
| Before Party: | Democratic Party (United States) |
| After Election: | James R. Mann |
| After Party: | Democratic Party (United States) |
Incumbent Democratic Congressman James R. Mann of the 4th congressional district, in office since 1969, defeated Republican challenger Robert L. Watkins.
|-| | colspan=5 |Democratic hold|-
| Election Name: | 1974 South Carolina's 5th congressional district election |
| Country: | South Carolina |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1972 United States House of Representatives elections in South Carolina#District 5 |
| Previous Year: | 1972 |
| Election Date: | November 5th, 1974 |
| Next Election: | 1976 United States House of Representatives elections in South Carolina#District 5 |
| Next Year: | 1976 |
| Image1: | Kenneth Lamar Holland.jpg |
| Nominee1: | Kenneth Lamar Holland |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 47,617 |
| Percentage1: | 61.4 % |
| Nominee2: | B. Len Phillips |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 29,294 |
| Percentage2: | 37.8% |
| Map Size: | 250px |
| U.S. Representative | |
| Before Election: | Kenneth Lamar Holland |
| Before Party: | Democratic Party (United States) |
| After Election: | Kenneth Lamar Holland |
| After Party: | Democratic Party (United States) |
Incumbent Democratic Congressman Thomas S. Gettys of the 5th congressional district, in office since 1964, opted to retire. Kenneth Lamar Holland won the Democratic primary and defeated Republican B. Len Phillips in the general election.
| Democratic primary | ||
|---|---|---|
| Candidate | Votes | % |
| 20,176 | 31.5 | |
| Frank Roddey | 17,051 | 26.7 |
| John Justice | 11,406 | 17.8 |
| Robert H. Moore | 5,848 | 9.1 |
| E.M. Watt | 3,631 | 5.7 |
| Howard J. Parnell | 3,244 | 5.1 |
| William S. Holler | 2,648 | 4.1 |
| Democratic primary runoff | |||
|---|---|---|---|
| Candidate | Votes | % | ±% |
| Kenneth Lamar Holland | 32,549 | 52.2 | +20.7 |
| Frank Roddey | 29,768 | 47.8 | +21.1 |
|-| | colspan=5 |Democratic hold|-
| Election Name: | 1974 South Carolina's 6th congressional district election |
| Country: | South Carolina |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1972 United States House of Representatives elections in South Carolina#District 6 |
| Previous Year: | 1972 |
| Election Date: | November 5th, 1974 |
| Next Election: | 1976 United States House of Representatives elections in South Carolina#District 6 |
| Next Year: | 1976 |
| Image1: | John Jenrette.png |
| Nominee1: | John Jenrette |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | John Jenrette |
| Percentage1: | 52.0% |
| Nominee2: | Edward Lunn Young |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 41,982 |
| Percentage2: | 48.0% |
| Map Size: | 250px |
| U.S. Representative | |
| Before Election: | Edward Lunn Young |
| Before Party: | Republican Party (United States) |
| After Election: | John Jenrette |
| After Party: | Democratic Party (United States) |
Incumbent Republican Congressman Edward Lunn Young of the 6th congressional district, in office since 1973, was defeated in his bid for re-election by Democrat John Jenrette.
|-| | colspan=5 |Democratic gain from Republican|-