2024 United States presidential election in Idaho

The 2024 United States presidential election in Idaho took place on Tuesday, November 5, 2024, as part of the 2024 United States presidential election in which all 50 states plus the District of Columbia participated. Idaho voters chose electors to represent them in the Electoral College via a popular vote. The state of Idaho has 4 electoral votes in the Electoral College, following reapportionment due to the 2020 United States census in which the state neither gained nor lost a seat.

Prior to the election, all major news organizations considered Idaho a solid red state; a sparsely populated Mountain state with an overwhelmingly White populace and an evangelical predominance, Idaho is one of the most staunchly conservative states in the U.S., with the only Democratic presidential candidate to carry the state after Harry Truman in 1948 being landslide winner Lyndon B. Johnson in 1964, and Republicans having never won the state's electoral votes by less than 13% since.

As expected, Republican Donald Trump overwhelmingly won Idaho, taking 66.9% of the vote to Democrat Kamala Harris' 30.4% and winning the state by 36.5%, well above his 30.8% in 2020 and his 31.8% in 2016, and the widest presidential margin of victory in Idaho since George W. Bush's 38.1% in 2004. Idaho was Trump's third strongest state nationwide, only behind West Virginia and neighboring Wyoming.