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 for re-election to a third term. [[File:2018 South Carolina Attorney General election.svg|alt=Final results by county|thumb|249x249px|Final results by county:{{legend|#e81b22|Wilson}}

{{legend|#E27F7F|50–60%}}

{{legend|#D75D5D|60–70%}}

{{legend|#D72F30|70–80%}}{{legend|#3233fd|Anastopoulo}}

{{legend|#7996e2|50–60%}}

{{legend|#6674de|60–70%}}

{{legend|#584cde|70–80%}}]]

Secretary of state
Incumbent Republican secretary of state Mark Hammond won for re-election to a fifth term in office. Governing magazine had projected the race as "safe Republican". [[File:2018 South Carolina Secretary of State election.svg|alt=Final results by county|thumb|249x249px|Final results by county:{{legend|#e81b22|Hammond}}

{{legend|#E27F7F|50–60%}}

{{legend|#D75D5D|60–70%}}

{{legend|#D72F30|70–80%}}{{legend|#3233fd|Whittenburg}}

{{legend|#7996e2|50–60%}}

{{legend|#6674de|60–70%}}

{{legend|#584cde|70–80%}}]]

Treasurer
Incumbent Republican Treasurer Curtis Loftis won re-election to a third term in office. [[File:2018 South Carolina State Treasurer election.svg|alt=Final results by county|thumb|249x249px|Final results by county:{{legend|#e81b22|Loftis}}

{{legend|#E27F7F|50–60%}}

{{legend|#D75D5D|60–70%}}

{{legend|#D72F30|70–80%}}{{legend|#3233fd|Glenn}}

{{legend|#7996e2|50–60%}}

{{legend|#6674de|60–70%}}

{{legend|#584cde|70–80%}}]]

Comptroller general
Incumbent Republican Richard Eckstrom won re-election to a fifth term in office. [[File:South_Carolina_GOP_Sweep.svg|alt=Final results by county|thumb|250x250px|Final results by county:{{legend|#e81b22|Eckstrom}}

{{legend|#a80000|>90%}}]]

Superintendent of Education
Incumbent Republican Superintendent of Education Molly Spearman won re-election to a second term. [[File:South_Carolina_GOP_Sweep.svg|alt=Final results by county|thumb|250x250px|Final results by county:{{legend|#e81b22|Spearman}}

{{legend|#a80000|>90%}}]]

Commissioner of Agriculture
[[File:2018 South Carolina Agriculture Commissioner election results map by county.svg|alt=Final results by county|thumb|250x250px|Final results by county: {{legend|#e81b22|Weathers}}

{{legend|#ffb2b2|40–50%}}

{{legend|#E27F7F|50–60%}}

{{legend|#D75D5D|60–70%}}

{{legend|#D72F30|70–80%}}

{{legend|#c21b18|80–90%}}]] 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.