The Democratic primary election was held on 14 September 1966, but as no candidate received a majority of the vote, a run-off election was held between incumbent lieutenant governor Peter Zack Geer and George T. Smith on 28 September 1966. Candidate George T. Smith received a majority of the votes (55.54%) in the run-off election against Geer, and was thus elected as the nominee for the general election.[1]
On election day, 8 November 1966, Democratic nominee George T. Smith ran unopposed and won the election with 637,095 votes, thereby retaining Democratic control over the office of lieutenant governor. Smith was sworn in as the 6th lieutenant governor of Georgia on 10 January 1967.[3]