South Carolina 18th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
John W. Davis1924
98.9%
174 votes · D+97.7 · modeled estimate
Runner-up · William J. Bryan, 1900 · 98.8%
Republican
Richard Nixon1972
87.9%
4,651 votes · R+77.9 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 82.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
5,988votes
26.2% of the vote · R+46.1 · modeled estimate
Runner-up · Joe Biden, 2020 · 5,851 votes
Republican
Donald Trump2024
16,514votes
72.3% of the vote · R+46.1 · modeled estimate
Runner-up · Donald Trump, 2020 · 15,303 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
John W. Davis1924
+122.9pts D vs U.S.
Place D+97.7 · U.S. R+25.2 · modeled estimate
Runner-up · Alton B. Parker, 1904 · +116.3 pts
Republican
Barry Goldwater1964
+73.5pts R vs U.S.
Place R+50.9 · U.S. D+22.6 · modeled estimate
Runner-up · George W. Bush, 2000 · +57.3 pts
current representation
Current officeholders
RAlan MorganState House · 18
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 3 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
R
38.7%7,432
61.3%11,752
19,184
2020
R
37.7%7,167
62.3%11,829
18,996
2018
R
38.6%5,042
61.4%8,016
13,058
South Carolina 18th State House District sits in the Deep South. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 97.9 points in 1912 and a Republican high of 77.9 points in 1972. Between 2020 and 2024 the district moved 2.2 points toward the Republican candidate; the 2024 margin was 46.1 points.
A population of 42,229, a 75% non-Hispanic-white share, and a median household income of $75,915 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 17 and State House District 22.
Akashic
Political twins — state-house districts
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
South Carolina 18th State House District. Akashic. https://akashic.app/sld-lower/45018/. Accessed May 20, 2026. License: CC BY 4.0.
How did South Carolina 18th State House District vote in 2024?
In 2024, South Carolina 18th State House District voted Republican by 46.1 points (R+46.1), carried by the Republican candidate. Out of 22,839 votes cast, 5,988 went Democratic and 16,514 went Republican.
When did South Carolina 18th State House District last vote Democratic?
The most recent presidential election in which South Carolina 18th State House District voted Democratic was 1944.
How many people live in South Carolina 18th State House District?
South Carolina 18th State House District has a population of 42,229 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in South Carolina 18th State House District?
Median household income in South Carolina 18th State House District is $75,915 — below the national median of $80,734. The South Carolina state median is $69,324.
What is the political history of South Carolina 18th State House District?
Akashic tracks 38 presidential elections in South Carolina 18th State House District from 1876 to 2024. Of those, 17 went Democratic and 19 went Republican.