The 1904 United States presidential election in South Dakota took place on November 8, 1904. All contemporary 45 states were part of the 1904 United States presidential election. Voters chose four electors to the Electoral College, which selected the president and vice president.

Aurora County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 2,747. The county was created in 1879, and was organized in 1881.