Results archive / South Dakota
South Dakota election results
President since 1976, counties since 2000, US Senate since 1976.
President
Electoral votes
1976 R 41980 R 41984 R 31988 R 31992 R 31996 R 32000 R 32004 R 32008 R 32012 R 32016 R 32020 R 32024 R 3
2024 Trump+29.2
Counties
Democratic lead<55-1010-2020+
Republican lead<55-1010-2020+
No dataSwing
Towards the Democrat<22-55-1010+
Towards the Republican<22-55-1010+
No dataUS Senate
2026uncertified count
Mike Rounds (R)60.5%
Brian Bengs (I)39.5%
2022
John R Thune (R)69.6%
Brian L Bengs (D)26.1%
2020
Mike Rounds (R)65.7%
Dan Ahlers (D)34.3%
2016
John R. Thune (R)71.8%
Jay Williams (D)28.2%
2014
Mike Rounds (R)50.4%
Rick Weiland (D)29.5%
2010
John Thune (R)100.0%
2008
Tim Johnson (D)62.5%
Joel Dykstra (R)37.5%
2004
John Thune (R)50.6%
Tom Daschle (D)49.4%
2002
Tim Johnson (D)49.6%
John Thune (R)49.5%
1998
Tom Daschle (D)62.1%
Ron Schmidt (R)36.4%
1996
Tim Johnson (D)51.3%
Larry Pressler (R)48.7%
1992
Thomas A. Daschle (D)64.9%
Charlene Haar (R)32.5%
1990
Larry Pressler (R)52.4%
Ted Muenster (D)45.1%
1986
Thomas A. Daschle (D)51.6%
James Abdnor (R)48.4%
1984
Larry Pressler (R)74.5%
George V. Cunningham (D)25.5%
1980
James Abdnor (R)58.2%
George McGovern (D)39.4%
1978
Larry Pressler (R)66.8%
Don Barnett (D)33.2%
MEDSL and VEST results files: fixed historic releases. 2026 Senate counts: uncertified.
Sources
- National Archives, Office of the Federal Register: Electoral College results 1976-2024 (Public domain (US government work))
- MIT Election Data and Science Lab, U.S. President 1976-2024, Harvard Dataverse (CC0 1.0)
- MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (GitHub copy, commit f44e3fc; the dataset is CC0 1.0 on Harvard Dataverse, doi:10.7910/DVN/VOQCHQ) (CC0 1.0)
- Connecticut Secretary of the State, 2012 presidential election results by town (CT Election History), summed to the eight legacy counties by PollCheck (Official public records)
- Voting and Election Science Team, 2020 Precinct-Level Election Results, Harvard Dataverse (precincts summed to counties by PollCheck) (CC BY 4.0)
- PollCheck 2024 county totals (us_site/house_pres.py): MEDSL 2024 precinct returns (CC0 1.0) plus the state sources named in county_pres_2024.json (CC0 1.0 (MEDSL rows))
- US Census Bureau cartographic boundary files: counties 2020 (1:500,000) and 2024 (1:5,000,000) (Public domain)
- US Census Bureau state legislative districts (lower chamber), Alaska: TIGER/Line 2010 (2000 and 2010 districts) and cartographic boundary files 2013, 2018 and 2023 (Public domain)
- Maine Bureau of Corporations, Elections and Commissions, 2024 General Election, President and Vice President (certified, corrected 5 Dec 2024) (Maine government record)
- New York State Board of Elections, 2004 General Election, President and Vice President, results by county (New York government record)
- New York State Board of Elections, President and Vice-President Election Returns Nov. 6, 2012 (dated 20 Mar 2013, Kings update 9 Jun 2013), copy hosted by the American Presidency Project (New York government record)
- MIT Election Data and Science Lab, U.S. Senate statewide 1976-2024, Harvard Dataverse (CC0 1.0)
- State election office counts as read by the PollCheck midterms results feed (us_midterms_2026/data/results.json); uncertified (Official public records)
- us-atlas 3.0.1 counties-albers-10m (Census 2017 county boundaries) (ISC)
- us-atlas 3.0.1 states-albers-10m.json (US Census Bureau cartographic boundary files 2017; ISC licence)
Final results.