South Carolina 40th State Senate District, South Carolina: Bellwether district. In 2024, voted R+7%. Democratic peak: D+99 in 1936.
Key facts
- 2024 presidential margin
- R+7MIT Election Lab
- Political archetype
- BellwetherAkashic typology
- Population
- 161,4982024 5-year
- Median household income
- $56,8332024 5-year
- White (non-Hispanic)
- 51.6%2024 5-year
- Black
- 40.3%2024 5-year
- Hispanic / Latino
- 5.0%2024 5-year
- Peak Democratic margin
- D+99 in 1932MIT Election Lab
- Peak Republican margin
- R+36 in 1964MIT Election Lab
Constituent county margins for State Senate District 40, 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.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 34,747 | 40,182 | 75,895 | ||
| D | 39,395 | 39,155 | 79,509 | ||
| D | 35,417 | 34,874 | 72,519 | ||
| D | 39,603 | 33,739 | 74,107 | ||
| D | 37,681 | 33,622 | 72,087 | ||
| R | 31,425 | 31,709 | 63,699 | ||
| R | 26,773 | 28,880 | 56,496 | ||
| D | 24,874 | 23,496 | 50,668 | ||
| D | 24,739 | 24,061 | 54,312 | ||
| R | 19,293 | 27,043 | 46,596 | ||
| R | 19,969 | 27,650 | 47,980 | ||
| D | 23,556 | 20,556 | 44,711 | ||
| D | 23,680 | 17,003 | 40,916 | ||
| R | 11,040 | 23,761 | 35,290 | ||
| D | 12,413 | 12,337 | 37,099 | ||
| R | 9,798 | 20,947 | 30,745 | ||
| R | 7,847 | 11,860 | 19,707 | ||
| D | 5,997 | 4,554 | 15,438 | ||
| R | 6,326 | 7,349 | 13,676 | ||
| O | 782 | 207 | 9,561 | ||
| D | 5,375 | 196 | 6,028 | ||
| D | 6,156 | 133 | 6,289 | ||
| D | 7,984 | 0 | 8,038 | ||
| D | 7,610 | 0 | 7,723 | ||
| D | 4,116 | 212 | 4,330 | ||
| D | 3,590 | 83 | 3,698 | ||
| D | 3,904 | 204 | 4,108 | ||
| D | 4,421 | 110 | 4,552 | ||
| D | 3,244 | 0 | 3,337 | ||
| D | 4,615 | 344 | 4,959 | ||
| D | 4,612 | 208 | 4,821 | ||
| D | 4,075 | 217 | 4,292 | ||
| D | 4,743 | 497 | 5,249 | ||
| D | 4,446 | 1,197 | 5,715 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
13.5%
English
8.2%
German
7.0%
Irish
5.9%
Italian
2.2%
Scottish
1.6%
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: 41.6 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
$56,833
State Senate District 40 ranks near the middle of US counties.
State Senate District 40$56,833
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
19.3%
Children face higher poverty than working-age adults.
Children under 1826.5%
Working age (18–64)17.2%
Seniors (65+)17.7%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
95.3%
speak English only
Spanish3.1%
Other Indo-European0.7%
Asian & Pacific Islander0.5%
Other languages0.3%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 40.0% of residents not counted as adherents by any reporting body.
With a 37-point Republican presidential margin, this district ranks among the state's most reliably one-sided, suggesting a demographic profile heavily weighted toward rural or small-town white voters with limited electoral competition at the top of the ticket.
The Democratic margin in South Carolina 40th State Senate District has rarely exceeded ninety-nine points in modern history; the Republican margin has rarely exceeded thirty-six points. 2024 delivered the district to the Republican candidate by seven points.
Its demographics resemble the country more than they resemble most districts. A 52% non-Hispanic-white share, a 19% poverty rate, and a median household income of $56,833 — all within the broad national range.
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 40, South Carolina. Akashic. https://akashic.app/sld-upper/45040/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State Senate District 40, South Carolina vote in 2024?
In 2024, State Senate District 40, South Carolina voted Republican by 7.2 points (R+7), carried by the Republican candidate. Out of 75,895 votes cast, 34,747 went Democratic and 40,182 went Republican.
What is State Senate District 40, South Carolina's political archetype?
Akashic classifies State Senate District 40, South Carolina as a "Bellwether" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 24 times, Republican 9 times, and other 1 times.
When did State Senate District 40, South Carolina last vote Democratic?
The most recent presidential election in which State Senate District 40, South Carolina voted Democratic was 2020.
How many people live in State Senate District 40, South Carolina?
State Senate District 40, South Carolina has a population of 161,498 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 40, South Carolina?
Median household income in State Senate District 40, South Carolina is $56,833 — below the national median of $80,734. The South Carolina state median is $69,324.
What is the political history of State Senate District 40, South Carolina?
Akashic tracks 38 presidential elections in State Senate District 40, South Carolina from 1876 to 2024. Of those, 24 went Democratic and 9 went Republican. The district's archetype — "Bellwether" — captures the overall trajectory of that voting record.