South Carolina 31st State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1936
99.1%
2,630 votes · D+98.1 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 98.5%
Republican
Richard Nixon1972
72.8%
16,314 votes · R+46.2 · modeled estimate
Runner-up · George H. W. Bush, 1988 · 68.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
20,963votes
40.9% of the vote · R+17.0 · modeled estimate
Runner-up · Kamala Harris, 2024 · 19,537 votes
Republican
Donald Trump2024
29,681votes
59.5% of the vote · R+20.3 · modeled estimate
Runner-up · Donald Trump, 2020 · 29,680 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
James M. Cox1920
+113.4pts D vs U.S.
Place D+87.2 · U.S. R+26.2 · modeled estimate
Runner-up · Alton B. Parker, 1904 · +112.7 pts
Republican
Barry Goldwater1964
+57.6pts R vs U.S.
Place R+35.0 · U.S. D+22.6 · modeled estimate
Runner-up · George W. Bush, 2000 · +32.8 pts
current representation
Current officeholders
RMike ReichenbachState Senate · 31
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 2 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
44.4%20,274
55.6%25,366
45,640
2018
R
47.8%16,886
52.2%18,456
35,342
With roughly 107,000 residents and a 13-point Republican lean in 2024, South Carolina Senate District 31 sits firmly in the state's competitive-but-red interior, where suburban growth and rural tradition shape the electorate in roughly equal measure.
Across the recorded series it reached a Democratic high of 98.1 points in 1936 and a Republican high of 46.2 points in 1972. Between 2020 and 2024 the district moved 3.3 points toward the Republican candidate; the 2024 margin was 20.3 points.
A population of 106,681, a 58% non-Hispanic-white share, and a median household income of $63,773 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 23 and State Senate District 18.
Akashic
Political twins — state-senate districts
The state-senate 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 31st State Senate District. Akashic. https://akashic.app/sld-upper/45031/. Accessed May 20, 2026. License: CC BY 4.0.
How did South Carolina 31st State Senate District vote in 2024?
In 2024, South Carolina 31st State Senate District voted Republican by 20.3 points (R+20.3), carried by the Republican candidate. Out of 49,869 votes cast, 19,537 went Democratic and 29,681 went Republican.
When did South Carolina 31st State Senate District last vote Democratic?
The most recent presidential election in which South Carolina 31st State Senate District voted Democratic was 1944.
How many people live in South Carolina 31st State Senate District?
South Carolina 31st State Senate District has a population of 106,681 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in South Carolina 31st State Senate District?
Median household income in South Carolina 31st State Senate District is $63,773 — below the national median of $80,734. The South Carolina state median is $69,324.
What is the political history of South Carolina 31st State Senate District?
Akashic tracks 38 presidential elections in South Carolina 31st State Senate District from 1876 to 2024. Of those, 14 went Democratic and 17 went Republican.