The 1920 United States presidential election in South Dakota took place on November 2, 1920 as part of the 1920 United States presidential election in which all contemporary forty-eight states participated. Voters chose five electors, or representatives to the Electoral College, who voted for president and vice president.

Hutchinson County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 7,427. Its county seat is Olivet. The county was created in 1862 and organized in 1871; it was named for John Hutchinson, first territorial secretary.