- Lead
- 2,972
- Total
- 17,777
- vs nation
- D+18.2
South Carolina 121st State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 4,917
- Total
- 18,886
- vs nation
- D+21.6
- Lead
- 4,464
- Total
- 16,472
- vs nation
- D+25.0
- Lead
- 4,530
- Total
- 15,865
- vs nation
- D+24.7
- Lead
- 5,085
- Total
- 15,667
- vs nation
- D+25.2
- Lead
- 3,038
- Total
- 12,168
- vs nation
- D+27.4
- Lead
- 2,874
- Total
- 10,662
- vs nation
- D+26.4
- Lead
- 2,777
- Total
- 8,307
- vs nation
- D+24.9
Key facts
- 2024 presidential margin
- D+16.7MIT Election Lab
- Population
- 42,2192024 5-year
- Population density
- 63 / sq mi2024 5-year · TIGER/Line
- Land area
- 667 sq miTIGER/Line
- Median household income
- $56,9332024 5-year
- White (non-Hispanic)
- 40.1%2024 5-year
- Black
- 46.6%2024 5-year
- Hispanic / Latino
- 8.3%2024 5-year
- Peak Democratic margin
- D+99.8 in 1932MIT Election Lab
- Peak Republican margin
- R+28.6 in 1880MIT Election Lab
- Most similar
- State House District 49, SC · twin score 97.4
presidential history
Party record book
South Carolina 121st 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. Roosevelt1932
99.9%
1,008 votes · D+99.8 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 99.9%
Republican
James A. Garfield1880
64.3%
975 votes · R+28.6 · modeled estimate
Runner-up · Richard Nixon, 1972 · 50.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
11,785votes
62.4% of the vote · D+26.0 · modeled estimate
Runner-up · Barack Obama, 2008 · 10,320 votes
Republican
Donald Trump2024
7,268votes
40.9% of the vote · D+16.7 · modeled estimate
Runner-up · Donald Trump, 2020 · 6,868 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
+124.5pts D vs U.S.
Place D+98.3 · U.S. R+26.2 · modeled estimate
Runner-up · John W. Davis, 1924 · +124.3 pts
Republican
Barry Goldwater1964
+14.4pts R vs U.S.
Place D+8.2 · U.S. D+22.6 · modeled estimate
Runner-up · Thomas E. Dewey, 1948 · −11.8 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 | 45.3%5,225 | 54.7%6,314 | 11,539 |
| 2018 | R | 47.6%7,091 | 52.4%7,821 | 14,912 |
District 121 recorded a 16.7-point Democratic presidential margin in 2024, reflecting the concentrated urban electorate typical of South Carolina's majority-minority legislative seats.
Across the recorded series it reached a Democratic high of 99.8 points in 1932 and a Republican high of 28.6 points in 1880. Between 2020 and 2024 the district moved 9.3 points toward the Republican candidate; the 2024 margin was 16.7 points.
A population of 42,219, a 40% non-Hispanic-white share, and a median household income of $56,933 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 49 and State House District 29.
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 121st State House District. Akashic. https://akashic.app/sld-lower/45121/. Accessed May 20, 2026. License: CC BY 4.0.