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State profile

South Dakota elections & voting

Electoral votes, voting rules, and presidential results for South Dakota.

How South Dakota votes

In 2024, South Dakota voted Republican. It has backed the Republican Party in its last 15 consecutive elections.

3
electoral votes
Voter IDNo-excuse absenteeEarly votingSame-day registrationAutomatic registration

Voting rules

Photo ID Requested
Active

Photo ID requested with alternatives

Voter ID
Effective: 2003
No-Excuse Absentee
Active

Any voter can request mail ballot

Mail-In Voting
Effective: 2020
46 Days Early Voting
Active

Early voting available 46 days before election

Early Voting
Effective: 1992

Election history

How South Dakota has voted in presidential elections.

  • 2024RepublicanDonald Trump3 EV
  • 2020RepublicanDonald Trump3 EV
  • 2016RepublicanDonald Trump3 EV
  • 2012RepublicanMitt Romney3 EV
  • 2008RepublicanJohn McCain3 EV
  • 2004RepublicanGeorge W. Bush3 EV
  • 2000RepublicanGeorge W. Bush3 EV
  • 1996RepublicanBob Dole3 EV
  • 1992RepublicanGeorge H.W. Bush3 EV
  • 1988RepublicanGeorge H.W. Bush3 EV
  • 1984RepublicanRonald Reagan3 EV
  • 1980RepublicanRonald Reagan4 EV
  • 1976RepublicanGerald Ford4 EV
  • 1972RepublicanRichard Nixon4 EV
  • 1968RepublicanRichard Nixon4 EV
  • 1964DemocraticLyndon B. Johnson4 EV
  • 1960RepublicanRichard Nixon4 EV
  • 1956RepublicanDwight D. Eisenhower4 EV
  • 1952RepublicanDwight D. Eisenhower4 EV
  • 1948RepublicanThomas E. Dewey4 EV
  • 1944RepublicanThomas E. Dewey4 EV
  • 1940RepublicanWendell Willkie4 EV
  • 1936DemocraticFranklin D. Roosevelt4 EV
  • 1932DemocraticFranklin D. Roosevelt4 EV
  • 1928RepublicanHerbert Hoover5 EV
  • 1924RepublicanCalvin Coolidge5 EV
  • 1920RepublicanWarren G. Harding5 EV
  • 1916RepublicanCharles Evans Hughes5 EV
  • 1912ProgressiveTheodore Roosevelt5 EV
  • 1908RepublicanWilliam Howard Taft4 EV
  • 1904RepublicanTheodore Roosevelt4 EV
  • 1900RepublicanWilliam McKinley4 EV
  • 1896DemocraticWilliam Jennings Bryan4 EV
  • 1892RepublicanBenjamin Harrison4 EV

Timeline

2020s

2024
Election
Republican
major

2024 Presidential Election

Donald Trump won SD with 3 electoral votes

2020
Rule Change
Mail Voting
major

No-Excuse Absentee

Any voter can request mail ballot

2020
Election
Republican
major

2020 Presidential Election

Donald Trump won SD with 3 electoral votes

2010s

2016
Election
Republican
major

2016 Presidential Election

Donald Trump won SD with 3 electoral votes

2012
Election
Republican
major

2012 Presidential Election

Mitt Romney won SD with 3 electoral votes

2000s

2008
Election
Republican
major

2008 Presidential Election

John McCain won SD with 3 electoral votes

2004
Election
Republican
major

2004 Presidential Election

George W. Bush won SD with 3 electoral votes

2003
Rule Change
Voter ID
major

Photo ID Requested

Photo ID requested with alternatives

2000
Election
Republican
major

2000 Presidential Election

George W. Bush won SD with 3 electoral votes

1990s

1996
Election
Republican
major

1996 Presidential Election

Bob Dole won SD with 3 electoral votes

1992
Rule Change
Early Voting
moderate

46 Days Early Voting

Early voting available 46 days before election

1992
Election
Republican
major

1992 Presidential Election

George H.W. Bush won SD with 3 electoral votes

1980s

1988
Election
Republican
major

1988 Presidential Election

George H.W. Bush won SD with 3 electoral votes

1984
Election
Republican
major

1984 Presidential Election

Ronald Reagan won SD with 3 electoral votes

1980
Election
Republican
major

1980 Presidential Election

Ronald Reagan won SD with 4 electoral votes

1970s

1976
Election
Republican
major

1976 Presidential Election

Gerald Ford won SD with 4 electoral votes

1972
Election
Republican
major

1972 Presidential Election

Richard Nixon won SD with 4 electoral votes

1960s

1968
Election
Republican
major

1968 Presidential Election

Richard Nixon won SD with 4 electoral votes

1964
Election
Democratic
major

1964 Presidential Election

Lyndon B. Johnson won SD with 4 electoral votes

1960
Election
Republican
major

1960 Presidential Election

Richard Nixon won SD with 4 electoral votes

1950s

1956
Election
Republican
major

1956 Presidential Election

Dwight D. Eisenhower won SD with 4 electoral votes

1952
Election
Republican
major

1952 Presidential Election

Dwight D. Eisenhower won SD with 4 electoral votes

1940s

1948
Election
Republican
major

1948 Presidential Election

Thomas E. Dewey won SD with 4 electoral votes

1944
Election
Republican
major

1944 Presidential Election

Thomas E. Dewey won SD with 4 electoral votes

1940
Election
Republican
major

1940 Presidential Election

Wendell Willkie won SD with 4 electoral votes

1930s

1936
Election
Democratic
major

1936 Presidential Election

Franklin D. Roosevelt won SD with 4 electoral votes

1932
Election
Democratic
major

1932 Presidential Election

Franklin D. Roosevelt won SD with 4 electoral votes

1920s

1928
Election
Republican
major

1928 Presidential Election

Herbert Hoover won SD with 5 electoral votes

1924
Election
Republican
major

1924 Presidential Election

Calvin Coolidge won SD with 5 electoral votes

1920
Election
Republican
major

1920 Presidential Election

Warren G. Harding won SD with 5 electoral votes

1910s

1916
Election
Republican
major

1916 Presidential Election

Charles Evans Hughes won SD with 5 electoral votes

1912
Election
Progressive
major

1912 Presidential Election

Theodore Roosevelt won SD with 5 electoral votes

1900s

1908
Election
Republican
major

1908 Presidential Election

William Howard Taft won SD with 4 electoral votes

1904
Election
Republican
major

1904 Presidential Election

Theodore Roosevelt won SD with 4 electoral votes

1900
Election
Republican
major

1900 Presidential Election

William McKinley won SD with 4 electoral votes

1890s

1896
Election
Democratic
major

1896 Presidential Election

William Jennings Bryan won SD with 4 electoral votes

1892
Election
Republican
major

1892 Presidential Election

Benjamin Harrison won SD with 4 electoral votes