Presidential elections · 2000–2024
Buffalo County, SD — Presidential Election Results (2000–2024)
In 2024, Buffalo County, South Dakota voted for Kamala D. Harris (Democratic) by D+27.3 — 291 Democratic to 164 Republican of 466 votes cast. From 2020 to 2024 it shifted 3.5 points toward Republicans. That makes it 56.5 points more Democratic than South Dakota overall (R+29.2).
Data: MIT Election Data & Science Lab, Harvard Dataverse.
Margin by election, 2000–2024
Democratic minus Republican, in points of all votes cast — blue bars Democratic, red Republican.
Every election in Buffalo County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 291 | 164 | 11 | 62.4% | 35.2% | D+27.3 |
| 2020 | 352 | 183 | 14 | 64.1% | 33.3% | D+30.8 |
| 2016 | 296 | 171 | 23 | 60.4% | 34.9% | D+25.5 |
| 2012 | 472 | 166 | 3 | 73.6% | 25.9% | D+47.7 |
| 2008 | 454 | 156 | 2 | 74.2% | 25.5% | D+48.7 |
| 2004 | 603 | 223 | 15 | 71.7% | 26.5% | D+45.2 |
| 2000 | 256 | 140 | 12 | 62.7% | 34.3% | D+28.4 |
Buffalo County presidential elections — FAQ
Who carried Buffalo County in the 2024 presidential election?+
Kamala D. Harris (Democratic) carried Buffalo County, South Dakota in 2024 by D+27.3, with 466 votes cast. Data: MIT Election Data & Science Lab.
How did Buffalo County shift between 2020 and 2024?+
Buffalo County shifted 3.5 points toward Republicans between 2020 (D+30.8) and 2024 (D+27.3).
Is Buffalo County more Democratic or Republican than South Dakota overall?+
In 2024, Buffalo County went D+27.3 while South Dakota overall went R+29.2 — 56.5 points more Democratic than the state.
Where does this election data come from?+
County-level presidential returns (2000–2024) come from the MIT Election Data and Science Lab (MEDSL), published on the Harvard Dataverse. pumsdata is an independent product that makes the data easy to map and compare, and is not affiliated with MEDSL or Harvard.