South Carolina House of Representatives seat · lines in effect since 2024
South Carolina House District 18
A district of about 37,000 people, 32% of adults with a bachelor's degree. It votes R+45.4 relative to the nation for president.
Where it sits among all 124 seats
Every South Carolina House of Representatives seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
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
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2026 | |
|---|---|
| South Carolina House of Representatives | R+33.9 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: South Carolina Election CommissionUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 124 seats. Small marks are other seats in South Carolina. The black marker is District 18.
Higher than 59% of seats.
Higher than 77% of seats.
Higher than 64% of seats.
Lower than 85% of seats.
Lower than 76% of seats.
Denser than 55% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 1029% college gradsR+46.9Held RDistrict 104
31% college gradsR+39.2Held RDistrict 9
31% college gradsR+40.7Held RDistrict 83
33% college gradsR+38.1Held R
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 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 has held it
These lines took effect in 2024.
- Alan Morgan (R)
2025– · Won 2024 by 97.8, 2026 by 33.9
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)