The 2020 United States presidential election in Montana was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election in which all 50 states plus the District of Columbia participated. Montana voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, incumbent President Donald Trump and running mate Vice President Mike Pence, against Democratic Party nominee, former Vice President Joe Biden, and his running mate California Senator Kamala Harris. Montana had three electoral votes in the Electoral College for the 2020 election.

Roosevelt County is a county in the U.S. state of Montana. As of the 2020 census, the population was 10,794. Its county seat is Wolf Point. Roosevelt County was created by the Montana Legislature in 1919 from a portion of Sheridan County. The name honors former president Theodore Roosevelt, who had died earlier that year.