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South Dakota

Buffalo County, South Dakota presidential election results

In 2024 Kamala Harris won Buffalo County by 27.3 points, out of 466 votes for president.

Aurora (no county figures)Bennett (no county figures)Buffalo County: Kamala Harris +27.3Codington (no county figures)Davison (no county figures)Douglas (no county figures)Haakon (no county figures)Hanson (no county figures)McCook (no county figures)Mellette (no county figures)Pennington (no county figures)Sanborn (no county figures)Turner (no county figures)Ziebach (no county figures)Beadle (no county figures)Brookings (no county figures)Butte (no county figures)Charles Mix (no county figures)Custer (no county figures)Deuel (no county figures)Dewey (no county figures)Edmunds (no county figures)Grant (no county figures)Hand (no county figures)Harding (no county figures)Hughes (no county figures)Hyde (no county figures)Jones (no county figures)Lake (no county figures)Lyman (no county figures)Meade (no county figures)Miner (no county figures)Moody (no county figures)Shannon (no county figures)Spink (no county figures)Stanley (no county figures)Todd (no county figures)Union (no county figures)Brule (no county figures)Clark (no county figures)Day (no county figures)Faulk (no county figures)Hamlin (no county figures)Hutchinson (no county figures)Kingsbury (no county figures)Marshall (no county figures)Potter (no county figures)Sully (no county figures)Walworth (no county figures)Jackson (no county figures)Lawrence (no county figures)Lincoln (no county figures)McPherson (no county figures)Minnehaha (no county figures)Perkins (no county figures)Roberts (no county figures)Bon Homme (no county figures)Brown (no county figures)Campbell (no county figures)Clay (no county figures)Corson (no county figures)Fall River (no county figures)Gregory (no county figures)Tripp (no county figures)Yankton (no county figures)Jerauld (no county figures)
D+50R+50D+25R+252000: D+28.420002004: D+45.220042008: D+48.720082012: D+47.720122016: D+25.520162020: D+30.820202024: D+27.22024
Buffalo County margin: Republican minus Democratic share, in points. Bars above the line lean Republican, below lean Democratic.
TicketVotesShareBar
Kamala Harris DEM29162.4%
Donald J. Trump REP16435.2%
All other candidates112.4%
Total466

Buffalo County was D+27.2 against R+29.2 statewide, 56.4 points more Democratic than the state.

Source: County results compiled by Tony McGovern from news-media election-night tallies (Fox News, Politico, The New York Times); not a certified state document

TicketVotesShareBar
Joseph R. Biden35264.1%
Donald J. Trump18333.3%
Jo Jorgensen and Jeremy "Spike" Cohen142.6%
Total549

Buffalo County was D+30.8 against R+26.2 statewide, 57.0 points more Democratic than the state.

Source: South Dakota Secretary of State, 2020 General Election results spreadsheet (downloaded 2/23/2021), sheet 'Presidential Electors' by county (the workbook calls them unofficial; 693 of 693 precincts)

TicketVotesShareBar
Hillary Clinton DEM29660.4%
Donald J. Trump REP17134.9%
All other candidates234.7%
Total490

Buffalo County was D+25.5 against R+29.8 statewide, 55.3 points more Democratic than the state.

Source: MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (compiled from official state election records)

TicketVotesShareBar
Barack Obama DEM47273.6%
Mitt Romney REP16625.9%
All other candidates30.5%
Total641

Buffalo County was D+47.7 against R+18.0 statewide, 65.7 points more Democratic than the state.

Source: MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (compiled from official state election records)

TicketVotesShareBar
Barack Obama DEM45474.2%
John McCain REP15625.5%
All other candidates20.3%
Total612

Buffalo County was D+48.7 against R+8.4 statewide, 57.1 points more Democratic than the state.

Source: MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (compiled from official state election records)

TicketVotesShareBar
John Kerry DEM60371.7%
George W. Bush REP22326.5%
All other candidates151.8%
Total841

Buffalo County was D+45.2 against R+21.5 statewide, 66.7 points more Democratic than the state.

Source: MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (compiled from official state election records)

TicketVotesShareBar
Albert Gore, Jr. DEM25662.7%
George W. Bush REP14034.3%
All other candidates122.9%
Total408

Buffalo County was D+28.4 against R+22.7 statewide, 51.1 points more Democratic than the state.

Source: MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (compiled from official state election records)

Questions and answers

Who won Buffalo County, South Dakota in 2024?

Kamala Harris won Buffalo County by 27.3 points, out of 466 votes counted for president.

Is Buffalo County Republican or Democratic?

Presidential results: 2024: Democratic by 27.2 points; 2020: Democratic by 30.8 points; 2016: Democratic by 25.5 points; 2012: Democratic by 47.7 points; 2008: Democratic by 48.7 points; 2004: Democratic by 45.2 points; 2000: Democratic by 28.4 points.

How does Buffalo County vote compared with the rest of South Dakota?

In 2024 it was 56.4 points more Democratic than the state as a whole (Democratic by 27.2 points against Republican by 29.2 points statewide).

Official results As published by The American Presidency Project (UC Santa Barbara) and the state documents it links. How we use this data