South Carolina State Senate seat · lines in effect since 2022

South Carolina Senate District 18

A district of about 112,000 people, 41% of adults with a bachelor's degree. It votes R+29.4 relative to the nation for president.

Where it sits among all 46 seats

Every South Carolina State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

R+29.432nd most
Democratic
Most DemocraticMost Republican24th seat · the majority lineDistrict 18

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Who lives here, compared

Grey bars show the spread of all 46 seats. Small marks are other seats in South Carolina. The black marker is District 18.

Adults with a bachelor's degree41% 82nd pct · 9th of 46 in SC

Higher than 82% of seats.

White adults without a degree41% 53rd pct · 22nd of 46 in SC

Higher than 53% of seats.

Hispanic residents5% 29th pct · 33rd of 46 in SC

Lower than 71% of seats.

Black residents18% 40th pct · 28th of 46 in SC

Lower than 60% of seats.

Asian residents2% 78th pct · 11th of 46 in SC

Higher than 78% of seats.

People per square mile141 33rd pct · 31st of 46 in SC

Less dense than 67% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET