The 1984 United States presidential election in Missouri took place on November 6, 1984. All 50 states and the District of Columbia, were part of the 1984 United States presidential election. Voters chose 11 electors to the Electoral College, which selected the president and vice president of the United States.

Gasconade County is a county located in the east-central portion of the U.S. state of Missouri. As of the 2020 census, the population was 14,794. The county seat has been Hermann since 1842. The county was named after the Gasconade River.