2018 South Carolina elections

A general election was held in the U.S. state of South Carolina on November 6, 2018. All of South Carolina's executive officers were up for election, as well as all of South Carolina's seven seats in the United States House of Representatives.

United States Congress

All of South Carolina's seven seats in the United States House of Representatives were up for election in 2018.

Governor and lieutenant governor

Beginning with the 2018 gubernatorial election, the offices of governor and lieutenant governor were elected jointly as a ticket instead of being elected separately as in prior years.
Former incumbent Republican governor Nikki Haley was term-limited and could not run for re-election to a third consecutive term. Haley was selected as United States Ambassador to the United Nations in the Donald Trump administration. Haley's nomination was confirmed. Former lieutenant governor Henry McMaster became governor on January 24, 2017, for the remainder of the term.

Attorney General

Incumbent Republican attorney general Alan Wilson won re-election to a third term.

Secretary of State

Incumbent Republican secretary of state Mark Hammond won re-election to a fifth term in office. Governing magazine had projected the race as "safe Republican".

Treasurer

Incumbent Republican Treasurer Curtis Loftis won re-election to a third term in office.

Comptroller General

Incumbent Republican Richard Eckstrom won re-election to a fifth term in office uncontested.

Superintendent of Education

Incumbent Republican Superintendent of Education Molly Spearman won re-election to a second term.

Commissioner of Agriculture

Incumbent Republican Commissioner of Agriculture Hugh Weathers, who was appointed to the position in September 2004, won re-election to a fourth full term in office.

State legislature

All 124 seats in the South Carolina House of Representatives were up for election in 2018. On election day 2018, Republicans controlled 80 seats as compared to the Democrats' 44. Although four seats flipped party, there was no net change in the composition of the state House because Republicans flipped Districts 42 and 97 while Democrats flipped Districts 15 and 117. Republicans maintained their 80-to-44-seat majority in the South Carolina House following the 2018 election.