1984 United States presidential election in New Mexico

The 1984 United States presidential election in New Mexico took place on November 6, 1984. All fifty states and the District of Columbia, were part of the 1984 United States presidential election. State voters chose five electors to the Electoral College, which selected the president and vice president of the United States. New Mexico was won by incumbent United States President Ronald Reagan of California, who was running against former Vice President Walter Mondale of Minnesota. Reagan ran for a second time with incumbent Vice President former C.I.A. Director George H. W. Bush of Texas, and Mondale ran with Representative Geraldine Ferraro of New York, the first major female candidate for the vice presidency.

The presidential election of 1984 was a very partisan election for New Mexico, with more than 98 percent of the electorate voting for either the Democratic or Republican parties. In typical form for the time, the highly populated counties of Bernalillo and Los Alamos turned out mainly Republican. Meanwhile, the ongoing Democratic stronghold in the northern part of the state, inclusive of Santa Fe County and Rio Arriba County, is evident during this election.

New Mexico weighed in for this election as 1% more Republican than the national average. , this is the last election in which Guadalupe County and the only election in which recently created Cibola County voted for a Republican presidential candidate. In addition, this is also the most recent presidential election when the Republican candidate won the state by a double-digit margin.

Reagan won the election in New Mexico with a resounding 20-point sweep, making New Mexico 2.3% more Republican than the nation at large. No Republican candidate has received as strong of support in the American West at large as Reagan did.

Counties that flipped from Republican to Democratic

 * Grant
 * McKinley