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South Dakota

Union County, South Dakota presidential election results

In 2024 Donald J. Trump won Union County by 40.7 points, out of 8,876 votes for president.

Aurora (no county figures)Bennett (no county figures)Buffalo (no county figures)Codington (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 County: Donald J. Trump +40.7Brule (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: R+15.720002004: R+14.020042008: R+14.020082012: R+25.220122016: R+38.820162020: R+36.320202024: R+40.72024
Union County margin: Republican minus Democratic share, in points. Bars above the line lean Republican, below lean Democratic.

2024

South Dakota 2024
TicketVotesShareBar
Donald J. Trump REP6,16069.4%
Kamala Harris DEM2,54828.7%
All other candidates1681.9%
Total8,876

Union County was R+40.7 against R+29.2 statewide, 11.5 points more Republican 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

2020

South Dakota 2020
TicketVotesShareBar
Donald J. Trump5,94467.1%
Joseph R. Biden2,72530.8%
Jo Jorgensen and Jeremy "Spike" Cohen1862.1%
Total8,855

Union County was R+36.3 against R+26.2 statewide, 10.1 points more Republican 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)

2016

South Dakota 2016
TicketVotesShareBar
Donald J. Trump REP5,29067.0%
Hillary Clinton DEM2,22728.2%
All other candidates3804.8%
Total7,897

Union County was R+38.8 against R+29.8 statewide, 9.0 points more Republican than the state.

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

2012

South Dakota 2012
TicketVotesShareBar
Mitt Romney REP4,69861.8%
Barack Obama DEM2,78236.6%
All other candidates1161.5%
Total7,596

Union County was R+25.2 against R+18.0 statewide, 7.2 points more Republican than the state.

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

2008

South Dakota 2008
TicketVotesShareBar
John McCain REP4,31056.6%
Barack Obama DEM3,24442.6%
All other candidates660.9%
Total7,620

Union County was R+14.0 against R+8.4 statewide, 5.6 points more Republican than the state.

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

2004

South Dakota 2004
TicketVotesShareBar
George W. Bush REP3,98756.6%
John Kerry DEM3,00042.6%
All other candidates610.9%
Total7,048

Union County was R+14.0 against R+21.5 statewide, 7.5 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)

2000

South Dakota 2000
TicketVotesShareBar
George W. Bush REP3,26556.6%
Albert Gore, Jr. DEM2,35840.9%
All other candidates1492.6%
Total5,772

Union County was R+15.7 against R+22.7 statewide, 7.0 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 Union County, South Dakota in 2024?

Donald J. Trump won Union County by 40.7 points, out of 8,876 votes counted for president.

Is Union County Republican or Democratic?

Presidential results: 2024: Republican by 40.7 points; 2020: Republican by 36.3 points; 2016: Republican by 38.8 points; 2012: Republican by 25.2 points; 2008: Republican by 14.0 points; 2004: Republican by 14.0 points; 2000: Republican by 15.7 points.

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

In 2024 it was 11.5 points more Republican than the state as a whole (Republican by 40.7 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