- Lead
- 20,355
- Total
- 58,787
- vs nation
- R+33.2
South Carolina 13th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 17,213
- Total
- 56,819
- vs nation
- R+34.8
- Lead
- 16,327
- Total
- 47,635
- vs nation
- R+36.4
- Lead
- 12,528
- Total
- 43,713
- vs nation
- R+32.5
- Lead
- 12,018
- Total
- 43,644
- vs nation
- R+34.8
- Lead
- 13,286
- Total
- 38,992
- vs nation
- R+31.6
- Lead
- 10,899
- Total
- 33,732
- vs nation
- R+32.8
- Lead
- 4,817
- Total
- 27,789
- vs nation
- R+25.9
Key facts
- 2024 presidential margin
- R+34.6MIT Election Lab
- Population
- 113,9112024 5-year
- Population density
- 193 / sq mi2024 5-year · TIGER/Line
- Land area
- 589 sq miTIGER/Line
- Median household income
- $75,1362024 5-year
- White (non-Hispanic)
- 71.7%2024 5-year
- Black
- 16.4%2024 5-year
- Hispanic / Latino
- 5.5%2024 5-year
- Peak Democratic margin
- D+97.6 in 1936MIT Election Lab
- Peak Republican margin
- R+59.0 in 1972MIT Election Lab
- Most similar
- State Senate District 6, MS · twin score 96.1
presidential history
Party record book
South Carolina 13th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1936
98.8%
4,460 votes · D+97.6 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 98.2%
Republican
Richard Nixon1972
78.8%
15,477 votes · R+59.0 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 69.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
19,377votes
34.1% of the vote · R+30.3 · modeled estimate
Runner-up · Kamala Harris, 2024 · 18,864 votes
Republican
Donald Trump2024
39,219votes
66.7% of the vote · R+34.6 · modeled estimate
Runner-up · Donald Trump, 2020 · 36,590 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
+121.5pts D vs U.S.
Place D+95.3 · U.S. R+26.2 · modeled estimate
Runner-up · John W. Davis, 1924 · +120.8 pts
Republican
Donald Trump2016
+36.4pts R vs U.S.
Place R+34.3 · U.S. D+2.1 · modeled estimate
Runner-up · Richard Nixon, 1972 · +35.9 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.
In 2024 it voted Republican by R+34.7, against R+27.5 in 2008. The district had about 177,000 residents, 66.5% White alone in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 97.6 points in 1936 and a Republican high of 59.0 points in 1972. Between 2020 and 2024 the district moved 4.3 points toward the Republican candidate; the 2024 margin was 34.6 points.
A population of 113,911, a 72% non-Hispanic-white share, and a median household income of $75,136 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 6 and State Senate District 30.
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.
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 13th State Senate District. Akashic. https://akashic.app/sld-upper/45013/. Accessed May 20, 2026. License: CC BY 4.0.