The 1890 South Carolina United States House of Representatives elections 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.
Jordan, Frank E. The Primary State: A History of the Democratic Party in South Carolina, 1876-1962. pp. 103, 108–109.
"Supplemental Report of the Secretary of State to the General Assembly of South Carolina." Reports and Resolutions of the General Assembly of the State of South Carolina at the Regular Session Commencing November 25, 1890. Volume I. Columbia, SC: James H. Woodrow, 1891, pp. 609–612.