South Carolina 18th State Senate District, South Carolina: Republican loyalist district. In 2024, voted R+15%. Republican peak: R+15 in 2024.
Key facts
- 2024 presidential margin
- R+15MIT Election Lab
- Political archetype
- Republican loyalistAkashic typology
- Population
- 115,3302024 5-year
- Median household income
- $68,3322024 5-year
- White (non-Hispanic)
- 59.4%2024 5-year
- Black
- 29.1%2024 5-year
- Hispanic / Latino
- 7.9%2024 5-year
- Peak Republican margin
- R+15 in 2024MIT Election Lab
Constituent county margins for State Senate District 18, SCOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
5 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 22,270 | 30,464 | 53,519 | ||
| R | 24,492 | 29,276 | 54,581 | ||
| R | 19,778 | 25,564 | 47,548 | ||
| R | 19,986 | 24,386 | 44,972 | ||
| R | 19,795 | 24,874 | 45,160 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
12.3%
English
10.4%
Irish
7.6%
American
6.8%
Italian
2.5%
Scottish
1.9%
French
1.0%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 38.9 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$68,332
State Senate District 18 ranks near the middle of US counties.
State Senate District 18$68,332
South Carolina$69,324
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
14.9%
Children face moderate poverty.
Children under 1821.6%
Working age (18–64)13.3%
Seniors (65+)10.0%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
90.8%
speak English only
Spanish5.9%
Other Indo-European1.8%
Asian & Pacific Islander1.0%
Other languages0.5%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 46.5% of residents not counted as adherents by any reporting body.
With a 46-point Republican presidential margin in 2024, this district ranks among the state's most reliably one-sided constituencies, reflecting a rural and small-town demographic profile common to South Carolina's interior.
The Republican margin in South Carolina 18th State Senate District reached its widest at fifteen points in 2024. The margin in 2024 was fifteen points, in line with the district's deep historical pattern.
Its loyalty is rooted in its place. Median household income of $68,332, a 59% non-Hispanic-white share, and a population of 115,330 together describe a district whose political habits are deeply settled.
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State Senate District 18, South Carolina — The Long Memory. Akashic Intelligence — The Long Memory. https://tiers.akashic.app/sld-upper/45018/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State Senate District 18, South Carolina vote in 2024?
In 2024, State Senate District 18, South Carolina voted Republican by 15.3 points (R+15), carried by the Republican candidate. Out of 53,519 votes cast, 22,270 went Democratic and 30,464 went Republican.
What is State Senate District 18, South Carolina's political archetype?
Akashic classifies State Senate District 18, South Carolina as a "Republican loyalist" district based on its long-arc presidential voting pattern. Across 5 elections in the dataset, the district has voted Democratic 0 times, Republican 5 times, and other 0 times.
How many people live in State Senate District 18, South Carolina?
State Senate District 18, South Carolina has a population of 115,330 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State Senate District 18, South Carolina?
Median household income in State Senate District 18, South Carolina is $68,332 — below the national median of $80,734. The South Carolina state median is $69,324.
What is the political history of State Senate District 18, South Carolina?
Akashic tracks 5 presidential elections in State Senate District 18, South Carolina from 2008 to 2024. Of those, 0 went Democratic and 5 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.