- Lead
- 10,318
- Total
- 18,389
- vs nation
- R+54.6
South Carolina 30th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 8,974
- Total
- 18,105
- vs nation
- R+54.0
- Lead
- 7,410
- Total
- 15,902
- vs nation
- R+48.7
- Lead
- 5,354
- Total
- 14,939
- vs nation
- R+39.7
- Lead
- 5,301
- Total
- 14,895
- vs nation
- R+42.9
- Lead
- 4,996
- Total
- 13,467
- vs nation
- R+34.6
- Lead
- 3,617
- Total
- 11,713
- vs nation
- R+31.4
- Lead
- 1,396
- Total
- 9,591
- vs nation
- R+23.1
Key facts
- 2024 presidential margin
- R+56.1MIT Election Lab
- Population
- 41,6192024 5-year
- Population density
- 185 / sq mi2024 5-year · TIGER/Line
- Land area
- 225 sq miTIGER/Line
- Median household income
- $51,5572024 5-year
- White (non-Hispanic)
- 72.4%2024 5-year
- Black
- 17.3%2024 5-year
- Hispanic / Latino
- 5.8%2024 5-year
- Peak Democratic margin
- D+98.2 in 1936MIT Election Lab
- Peak Republican margin
- R+60.2 in 1972MIT Election Lab
- Most similar
- State House District 77, TN · twin score 98.0
presidential history
Party record book
South Carolina 30th State House 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
99.1%
1,451 votes · D+98.2 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1940 · 98.6%
Republican
Richard Nixon1972
79.4%
5,528 votes · R+60.2 · modeled estimate
Runner-up · Donald Trump, 2024 · 77.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Jimmy Carter1976
4,805votes
61.2% of the vote · D+22.8 · modeled estimate
Runner-up · Barack Obama, 2012 · 4,705 votes
Republican
Donald Trump2024
14,278votes
77.6% of the vote · R+56.1 · modeled estimate
Runner-up · Donald Trump, 2020 · 13,447 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
+122.6pts D vs U.S.
Place D+96.4 · U.S. R+26.2 · modeled estimate
Runner-up · John W. Davis, 1924 · +121.4 pts
Republican
Donald Trump2024
+54.6pts R vs U.S.
Place R+56.1 · U.S. R+1.5 · modeled estimate
Runner-up · Donald Trump, 2020 · +54.0 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.
With a 56.1-point Republican presidential margin in 2024, this rural South Carolina district ranks among the state's most one-sided, reflecting the deep partisan alignment common to low-density, majority-white rural constituencies in the Palmetto State's interior.
Across the recorded series it reached a Democratic high of 98.2 points in 1936 and a Republican high of 60.2 points in 1972. Between 2020 and 2024 the district moved 6.5 points toward the Republican candidate; the 2024 margin was 56.1 points.
A population of 41,619, a 72% non-Hispanic-white share, and a median household income of $51,557 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 77 and State House District 19.
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 30th State House District. Akashic. https://akashic.app/sld-lower/45030/. Accessed May 20, 2026. License: CC BY 4.0.