The 1988 United States presidential election in Montana took place on November 8, 1988, and was part of the 1988 United States presidential election. Voters chose four representatives, or electors to the Electoral College, who voted for president and vice president. This was the last election when Montana had four electoral votes: the continuing depopulation of the Great Plains would cause the state to revert to an at-large congressional district for 1992. Montana regained a second congressional district, and therefore a fourth electoral vote, in 2022.

Blaine County is a county in the U.S. state of Montana. As of the 2020 census, the population was 7,044. Its county seat is Chinook. The county was named for James G. Blaine, former United States Secretary of State. It is on the north line of the state, and thus shares the southern border of Canada opposite Saskatchewan.