South Carolina 40th State Senate District
Akashic| Kamala Harris ✓Democratic | 49.6% | 23,777 |
|---|---|---|
| Donald TrumpRepublican | 49.2% | 23,554 |
| Chase OliverLibertarian | 1.2% | 576 |
County-level results (6 counties) — table
| County | Winner | Margin |
|---|---|---|
| Aiken County, SC | Republican | R+25.9 |
| Allendale County, SC | Democratic | D+44.7 |
| Bamberg County, SC | Democratic | D+15.3 |
| Barnwell County, SC | Republican | R+15.5 |
| Colleton County, SC | Republican | R+18.2 |
| Orangeburg County, SC | Democratic | D+24.6 |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 49.6%Harris23,777 | 49.2%Trump23,554 | 1.2%Oliver576 | 47,907 | ||
| D | 54.5%Biden28,283 | 44.5%Trump23,092 | 1.0%Jorgensen510 | 51,885 | ||
| D | 55.0%Clinton26,920 | 42.8%Trump20,926 | 2.2%Johnson1,079 | 48,925 | ||
| D | 60.6%Obama31,216 | 39.4%Romney20,272 | 0.0% | 51,488 | ||
| D | 56.7%Obama28,451 | 41.5%McCain20,812 | 1.8%Barr911 | 50,174 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | +15.2% |
| 2012 | +21.3% |
| 2016 | +12.3% |
| 2020 | +10.0% |
| 2024 | +0.5% |
State legislative officeholder from OpenStates nightly current-legislator data.
With a 37-point Republican presidential margin, this district ranks among the state's most reliably one-sided, suggesting a demographic profile heavily weighted toward rural or small-town white voters with limited electoral competition at the top of the ticket.
Across the recorded series it reached a Democratic high of 21.3 points in 2012. Between 2020 and 2024 the district moved 9.5 points toward the Republican candidate; the 2024 margin was 0.5 points.
A population of 106,768, a 45% non-Hispanic-white share, and a median household income of $47,567 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 28 and State Senate District 17.
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 →
South Carolina 40th State Senate District. Akashic. https://akashic.app/sld-upper/45040/. Accessed May 20, 2026. License: CC BY 4.0.