akashic
1876–2024
State Senate District 18·South Carolina

South Carolina 18th State Senate District delivered R+13 in 2024 — close enough to flip again next time.

One of South Carolina's most lopsided presidential margins in 2024

1876 — 2024·38 elections
SC
Latest
R+13
in 2024
Archetype
Tossup
since the recent cycles
Population
106,768
2024 ACS

South Carolina 18th State Senate District, South Carolina: Tossup district. In 2024, voted R+13%. Democratic peak: D+99 in 1932.

Key facts

2024 presidential margin
R+13MIT Election Lab
Political archetype
TossupAkashic typology
Population
106,7682024 5-year
Median household income
$67,3832024 5-year
White (non-Hispanic)
58.1%2024 5-year
Black
30.5%2024 5-year
Hispanic / Latino
7.9%2024 5-year
Peak Democratic margin
D+99 in 1932MIT Election Lab
Peak Republican margin
R+51 in 1972MIT Election Lab
2024 results by constituent county
3 counties · 1 D · 2 R
R+60
D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
R
−13.2%
21,04427,57149,340
R
−6.4%
23,26226,51150,515
R
−9.6%
18,95123,18744,145
R
−7.0%
19,19922,10941,856
R
−8.6%
19,03722,67142,164
R
−18.3%
13,53419,69933,712
R
−19.0%
12,12418,03931,111
R
−8.1%
11,16913,26625,974
R
−10.0%
11,31114,18928,671
R
−28.5%
8,06214,61223,005
R
−34.3%
7,40115,28522,957
R
−13.2%
8,90211,67921,114
R
−1.8%
9,6369,98419,735
R
−51.1%
4,24013,38217,902
R
−20.6%
4,3818,03417,711
R
−27.3%
5,2209,13714,359
R
−7.1%
4,5595,2579,817
D
+21.9%
3,4051,7417,594
R
−12.9%
4,5335,87210,405
O
+11.8%
6091084,229
D
+82.8%
2,698843,156
D
+95.7%
2,295512,346
D
+99.3%
3,40103,426
D
+99.3%
3,51103,534
D
+95.5%
2,471552,531
D
+97.7%
2,150212,179
D
+94.5%
2,415642,488
D
+94.0%
2,134462,222
D
+96.8%
1,46601,514
D
+93.2%
2,102722,177
D
+94.4%
1,730501,780
D
+93.9%
1,547481,596
D
+86.5%
1,7861241,921
D
+66.7%
1,7413132,142
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Demographics

Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
12.1%
English
10.0%
Irish
7.3%
American
6.7%
Italian
2.4%
Scottish
1.9%
French
1.1%
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: 38.8 in this county, 39.1 nationally
Male
Age
Female
0.6%
85+
1.1%
2.3%
75–84
3.0%
4.9%
65–74
5.6%
6.2%
55–64
6.7%
5.7%
45–54
6.2%
6.1%
35–44
6.3%
6.2%
25–34
6.5%
5.7%
18–24
5.2%
8.4%
5–17
8.1%
2.7%
<5
2.8%
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$67,383
State Senate District 18 ranks near the middle of US counties.
State Senate District 18$67,383
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
15.3%
Children face moderate poverty.
Children under 1822.3%
Working age (18–64)13.7%
Seniors (65+)10.0%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
90.9%
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
Baptist
12.9%
Other Christian
11.6%
Methodist
11.3%
Mainline Protestant
9.1%
Catholic & Orthodox
5.9%
Pentecostal & Holiness
1.8%
Non-Christian
1.0%
Source · 2020 US Religion Census. Remaining 46.4% 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 district's recent history is a story of close margins. The Democratic margin reached ninety-nine points in 1932; the Republican margin reached fifty-one points in 1972. Most other elections have been decided by single-digit points.

Its demographics — a population of 106,768, a 58% non-Hispanic-white share, a median household income of $67,383 — situate the district close to national averages on several dimensions.

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 →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State Senate District 18, South Carolina. Akashic. https://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 13.2 points (R+13), carried by the Republican candidate. Out of 49,340 votes cast, 21,044 went Democratic and 27,571 went Republican.
What is State Senate District 18, South Carolina's political archetype?
Akashic classifies State Senate District 18, South Carolina as a "Tossup" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 15 times, Republican 18 times, and other 1 times.
When did State Senate District 18, South Carolina last vote Democratic?
The most recent presidential election in which State Senate District 18, South Carolina voted Democratic was 1956.
How many people live in State Senate District 18, South Carolina?
State Senate District 18, South Carolina has a population of 106,768 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 $67,383 — 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 38 presidential elections in State Senate District 18, South Carolina from 1876 to 2024. Of those, 15 went Democratic and 18 went Republican. The district's archetype — "Tossup" — captures the overall trajectory of that voting record.