- Lead
- 4,136
- Total
- 12,083
- vs nation
- D+35.7
South Carolina 31st State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 6,301
- Total
- 14,231
- vs nation
- D+39.8
- Lead
- 5,601
- Total
- 12,386
- vs nation
- D+43.1
- Lead
- 6,350
- Total
- 12,292
- vs nation
- D+47.8
- Lead
- 6,436
- Total
- 12,294
- vs nation
- D+45.1
- Lead
- 4,739
- Total
- 10,286
- vs nation
- D+48.5
- Lead
- 4,337
- Total
- 9,050
- vs nation
- D+47.4
- Lead
- 4,283
- Total
- 7,851
- vs nation
- D+46.0
Key facts
- 2024 presidential margin
- D+34.2MIT Election Lab
- Population
- 42,1282024 5-year
- Population density
- 1,727 / sq mi2024 5-year · TIGER/Line
- Land area
- 24.4 sq miTIGER/Line
- Median household income
- $42,5802024 5-year
- White (non-Hispanic)
- 31.4%2024 5-year
- Black
- 50.4%2024 5-year
- Hispanic / Latino
- 11.5%2024 5-year
- Peak Democratic margin
- D+99.7 in 1936MIT Election Lab
- Most similar
- State House District 140, GA · twin score 96.1
presidential history
Party record book
South Carolina 31st State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 37 with a vote-share denominator · 33 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1936
99.9%
2,376 votes · D+99.7 · modeled estimate
Runner-up · Alton B. Parker, 1904 · 99.8%
Republican
Richard Nixon1972
36.6%
1,271 votes · D+25.3 · modeled estimate
Runner-up · Donald Trump, 2024 · 32.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
10,159votes
71.4% of the vote · D+44.3 · modeled estimate
Runner-up · Barack Obama, 2008 · 9,218 votes
Republican
Donald Trump2024
3,882votes
32.1% of the vote · D+34.2 · modeled estimate
Runner-up · Donald Trump, 2020 · 3,858 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
+125.4pts D vs U.S.
Place D+99.2 · U.S. R+26.2 · modeled estimate
Runner-up · Alton B. Parker, 1904 · +119.4 pts
Republican
Donald Trump2024
−35.7pts R vs U.S.
Place D+34.2 · U.S. R+1.5 · modeled estimate
Runner-up · Richard Nixon, 1968 · −36.8 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2020 | R | 33.2%4,507 | 66.8%9,068 | 13,575 |
| 2018 | R | 36.1%4,034 | 63.9%7,129 | 11,163 |
South Carolina 31st State House District sits in the Deep South. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 99.7 points in 1936. Between 2020 and 2024 the district moved 10.0 points toward the Republican candidate; the 2024 margin was 34.2 points.
A population of 42,128, a 31% non-Hispanic-white share, and a median household income of $42,580 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 140 and State House District 51.
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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
South Carolina 31st State House District. Akashic. https://akashic.app/sld-lower/45031/. Accessed May 20, 2026. License: CC BY 4.0.