The general election was held on November 8, 1966 and Robert Evander McNair was elected to continue his term as governor of South Carolina. Turnout was the highest for any gubernatorial election since because it was the first time in 90 years that there was a competitive gubernatorial election.
"Supplemental Report of the Secretary of State to the General Assembly of South Carolina." Reports and Resolutions of South Carolina to the General Assembly of the State of South Carolina. Volume II. Columbia, South Carolina: 1967, p. 18.