The 1978 United States Senate elections were held on November 7, in the middle of Democratic President Jimmy Carter's term. The 33 seats of Class 2 were contested in regular elections. Special elections were also held to fill vacancies.
The 1970 United States House of Representatives elections in South Carolina were held on November 3, 1970, to select six Representatives for two-year terms from the state of South Carolina. The primary elections were held on June 9 and the runoff elections were held two weeks later on June 23. All five incumbents who ran were re-elected and the open seat in the 2nd district was retained by the Republicans. The composition of the state delegation remained five Democrats and one Republican.
The 1978 United States House of Representatives elections in South Carolina were held on November 7, 1978, to select six Representatives for two-year terms from the state of South Carolina. The primary elections for the Democrats and the Republicans were held on June 13. All five incumbents who ran were re-elected, but the open seat in the 4th congressional district was taken by the Republicans from the Democrats. The composition of the state delegation after the elections was four Democrats and two Republicans.
The 1980 United States House of Representatives elections in South Carolina were held on November 4, 1980, to select six Representatives for two-year terms from the state of South Carolina. The primary elections for the Democrats and the Republicans were held on June 10 and the runoff elections were held two weeks later on June 24. Three incumbents were re-elected, but John Jenrette of the 6th congressional district was defeated in his bid for re-election and the open seat in the 1st congressional district was taken by the Republicans from the Democrats. The composition of the state delegation after the elections was four Republicans and two Democrats.
The 1994 United States House of Representatives elections in South Carolina were held on November 8, 1994, to select six Representatives for two-year terms from the state of South Carolina. The primary elections for the Democrats and the Republicans were held on August 9 and the runoff elections were held two weeks later on August 23. All four incumbents who ran were re-elected and the Republicans won both of the open seats in the 1st congressional district and the 3rd congressional district. The composition of the state delegation after the elections was four Republicans and two Democrats.
The 1998 United States House of Representatives elections in South Carolina were held on November 3, 1998, to select six Representatives for two-year terms from the state of South Carolina. The primary elections for the Democrats and the Republicans were held on June 9 and the runoff elections were held two weeks later on June 23. All five incumbents who ran were re-elected and the open seat in the 4th congressional district was retained by the Republicans. The composition of the state delegation remained four Republicans and two Democrats.
The 2000 United States House of Representatives elections in South Carolina were held on November 7, 2000 to select six Representatives for two-year terms from the state of South Carolina. The primary elections for the Democrats and the Republicans were held on June 13 and the runoff elections were held two weeks later on June 27. All five incumbents who ran were re-elected and the open seat in the 1st congressional district was retained by the Republicans. The composition of the state delegation remained four Republicans and two Democrats.
The 1982 United States House of Representatives elections in South Carolina were held on November 2, 1982, to select six Representatives for two-year terms from the state of South Carolina. The primary elections for the Democrats were held on June 8 and the runoff elections were held two weeks later on June 22. Three incumbents were re-elected, but John Light Napier of the 6th congressional district was defeated in his bid for re-election and the open seat in the 5th congressional district was retained by the Democrats. The composition of the state delegation after the elections was three Republicans and three Democrats.
The 1940 United States House of Representatives elections in South Carolina were held on November 5, 1940 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 1st congressional district was retained by the Democrats. The composition of the state delegation thus remained solely Democratic.
The 1948 United States House of Representatives elections in South Carolina were held on November 2, 1948 to select six Representatives for two-year terms from the state of South Carolina. Four incumbents were re-elected, but John J. Riley of the 2nd congressional district was defeated in the Democratic primary by Hugo S. Sims, Jr. The seat remained with the Democrats along with the open seat in the 3rd congressional district and the composition of the state delegation remained solely Democratic.
The 1938 United States House of Representatives elections in South Carolina were held on November 8, 1938, to select six Representatives for two-year terms from the state of South Carolina. The primary elections were held on August 30 and the runoff elections were held two weeks later on September 13. Three incumbents were re-elected, but two incumbents were defeated in the Democratic primary. The three open seats were retained by the Democrats and the composition of the state delegation thus remained solely Democratic.
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.
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.
The 1876 United States House of Representatives elections in South Carolina were held on November 7, 1876 to select five Representatives for two-year terms from the state of South Carolina. Two incumbents were re-elected, one was defeated for re-election, and the Democrats picked up one of the two open seats from the Republicans. The composition of the state delegation after the election was three Republicans and two Democrats.
The 1878 United States House of Representatives elections in South Carolina were held on November 5, 1878 to select five Representatives for two-year terms from the state of South Carolina. Two Democratic incumbents were re-elected, two Republican incumbents were defeated and the open seat was picked up by the Democrats. The composition of the state delegation after the election was solely Democratic.
The 1884 United States House of Representatives elections in South Carolina were held on November 4, 1884, to select seven Representatives for two-year terms from the state of South Carolina. Five incumbents were re-elected and the two open seats were split between the Democrats and the Republicans. The composition of the state delegation after the election was six Democrats and one Republican.
The 1890 United States House of Representatives elections in South Carolina were held on November 4, 1890 to select seven Representatives for two-year terms from the state of South Carolina. Two Democratic incumbents were re-elected, one Republican incumbent was defeated, and the four open seats were retained by the Democrats. The composition of the state delegation after the election was solely Democratic.
The 1892 United States House of Representatives elections in South Carolina were held on November 8, 1892, to select seven Representatives for two-year terms from the state of South Carolina. Two Democratic incumbents were re-elected, four open seats were won by the Democrats and the open seat in the 7th congressional district was picked up by the Republicans. The composition of the state delegation after the election was six Democrats and one Republican.
The 1924 United States House of Representatives elections in South Carolina were held on November 4, 1924, to select seven Representatives for two-year terms from the state of South Carolina. Five incumbents were re-elected and the two open seats were retained by the Democrats. The composition of the state delegation thus remained solely Democratic.
The 1902 United States House of Representatives elections in South Carolina were held on November 4, 1902 to select seven Representatives for two-year terms from the state of South Carolina. Four incumbents were re-elected and the three open seats were retained by the Democrats. The composition of the state delegation after the election was solely Democratic.
