The 1980 United States presidential election in Montana took place on November 4, 1980, and was part of the 1980 United States presidential election. Voters chose four representatives, or electors to the Electoral College, who voted for president and vice president.
Montana overwhelmingly voted for the Republican nominee, Governor Ronald Reagan, over the Democratic nominee, President Jimmy Carter. Reagan won Montana by a landslide margin of 24.39%. As of the 2020 presidential election[update], this is the last election in which Big Horn County voted for a Republican presidential candidate.
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