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State profile

Idaho elections & voting

Electoral votes, voting rules, and presidential results for Idaho.

How Idaho votes

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

4
electoral votes
Voter IDNo-excuse absenteeEarly votingSame-day registrationAutomatic registration

Voting rules

Photo ID Requested
Active

Photo ID requested; affidavit available

Voter ID
Effective: 2010
No-Excuse Absentee
Active

Any voter can request absentee ballot

Mail-In Voting
Effective: 2012
14 Days Early Voting
Active

Early voting available 14 days before election

Early Voting
Effective: 2006
Same-Day Registration
Active

Register and vote on Election Day

Same-Day Registration
Effective: 1994

Election history

How Idaho has voted in presidential elections.

  • 2024RepublicanDonald Trump4 EV
  • 2020RepublicanDonald Trump4 EV
  • 2016RepublicanDonald Trump4 EV
  • 2012RepublicanMitt Romney4 EV
  • 2008RepublicanJohn McCain4 EV
  • 2004RepublicanGeorge W. Bush4 EV
  • 2000RepublicanGeorge W. Bush4 EV
  • 1996RepublicanBob Dole4 EV
  • 1992RepublicanGeorge H.W. Bush4 EV
  • 1988RepublicanGeorge H.W. Bush4 EV
  • 1984RepublicanRonald Reagan4 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
  • 1948DemocraticHarry S. Truman4 EV
  • 1944DemocraticFranklin D. Roosevelt4 EV
  • 1940DemocraticFranklin D. Roosevelt4 EV
  • 1936DemocraticFranklin D. Roosevelt4 EV
  • 1932DemocraticFranklin D. Roosevelt4 EV
  • 1928RepublicanHerbert Hoover4 EV
  • 1924RepublicanCalvin Coolidge4 EV
  • 1920RepublicanWarren G. Harding4 EV
  • 1916DemocraticWoodrow Wilson4 EV
  • 1912DemocraticWoodrow Wilson4 EV
  • 1908RepublicanWilliam Howard Taft3 EV
  • 1904RepublicanTheodore Roosevelt3 EV
  • 1900DemocraticWilliam Jennings Bryan3 EV
  • 1896DemocraticWilliam Jennings Bryan3 EV
  • 1892PopulistJames B. Weaver3 EV

Timeline

2020s

2024
Election
Republican
major

2024 Presidential Election

Donald Trump won ID with 4 electoral votes

2020
Election
Republican
major

2020 Presidential Election

Donald Trump won ID with 4 electoral votes

2010s

2016
Election
Republican
major

2016 Presidential Election

Donald Trump won ID with 4 electoral votes

2012
Rule Change
Mail Voting
major

No-Excuse Absentee

Any voter can request absentee ballot

2012
Election
Republican
major

2012 Presidential Election

Mitt Romney won ID with 4 electoral votes

2010
Rule Change
Voter ID
major

Photo ID Requested

Photo ID requested; affidavit available

2000s

2008
Election
Republican
major

2008 Presidential Election

John McCain won ID with 4 electoral votes

2006
Rule Change
Early Voting
moderate

14 Days Early Voting

Early voting available 14 days before election

2004
Election
Republican
major

2004 Presidential Election

George W. Bush won ID with 4 electoral votes

2000
Election
Republican
major

2000 Presidential Election

George W. Bush won ID with 4 electoral votes

1990s

1996
Election
Republican
major

1996 Presidential Election

Bob Dole won ID with 4 electoral votes

1994
Rule Change
Same-Day Registration
moderate

Same-Day Registration

Register and vote on Election Day

1992
Election
Republican
major

1992 Presidential Election

George H.W. Bush won ID with 4 electoral votes

1980s

1988
Election
Republican
major

1988 Presidential Election

George H.W. Bush won ID with 4 electoral votes

1984
Election
Republican
major

1984 Presidential Election

Ronald Reagan won ID with 4 electoral votes

1980
Election
Republican
major

1980 Presidential Election

Ronald Reagan won ID with 4 electoral votes

1970s

1976
Election
Republican
major

1976 Presidential Election

Gerald Ford won ID with 4 electoral votes

1972
Election
Republican
major

1972 Presidential Election

Richard Nixon won ID with 4 electoral votes

1960s

1968
Election
Republican
major

1968 Presidential Election

Richard Nixon won ID with 4 electoral votes

1964
Election
Democratic
major

1964 Presidential Election

Lyndon B. Johnson won ID with 4 electoral votes

1960
Election
Republican
major

1960 Presidential Election

Richard Nixon won ID with 4 electoral votes

1950s

1956
Election
Republican
major

1956 Presidential Election

Dwight D. Eisenhower won ID with 4 electoral votes

1952
Election
Republican
major

1952 Presidential Election

Dwight D. Eisenhower won ID with 4 electoral votes

1940s

1948
Election
Democratic
major

1948 Presidential Election

Harry S. Truman won ID with 4 electoral votes

1944
Election
Democratic
major

1944 Presidential Election

Franklin D. Roosevelt won ID with 4 electoral votes

1940
Election
Democratic
major

1940 Presidential Election

Franklin D. Roosevelt won ID with 4 electoral votes

1930s

1936
Election
Democratic
major

1936 Presidential Election

Franklin D. Roosevelt won ID with 4 electoral votes

1932
Election
Democratic
major

1932 Presidential Election

Franklin D. Roosevelt won ID with 4 electoral votes

1920s

1928
Election
Republican
major

1928 Presidential Election

Herbert Hoover won ID with 4 electoral votes

1924
Election
Republican
major

1924 Presidential Election

Calvin Coolidge won ID with 4 electoral votes

1920
Election
Republican
major

1920 Presidential Election

Warren G. Harding won ID with 4 electoral votes

1910s

1916
Election
Democratic
major

1916 Presidential Election

Woodrow Wilson won ID with 4 electoral votes

1912
Election
Democratic
major

1912 Presidential Election

Woodrow Wilson won ID with 4 electoral votes

1900s

1908
Election
Republican
major

1908 Presidential Election

William Howard Taft won ID with 3 electoral votes

1904
Election
Republican
major

1904 Presidential Election

Theodore Roosevelt won ID with 3 electoral votes

1900
Election
Democratic
major

1900 Presidential Election

William Jennings Bryan won ID with 3 electoral votes

1890s

1896
Election
Democratic
major

1896 Presidential Election

William Jennings Bryan won ID with 3 electoral votes

1892
Election
Populist
major

1892 Presidential Election

James B. Weaver won ID with 3 electoral votes