1936 United States presidential election in South Dakota

The 1936 United States presidential election in South Dakota took place on November 3, 1936, as part of the 1936 United States presidential election. Voters chose four representatives, or electors to the Electoral College, who voted for president and vice president.

South Dakota voted for the Democratic candidate Franklin D. Roosevelt over Republican candidate Alf Landon. Roosevelt won the state by a margin of 11.53%. , this is the last occasion when the following counties have voted for a Democratic Presidential candidate: Douglas, Fall River, Haakon, Harding, Hughes and Perkins.

Democratic primary
Incumbent President Franklin D. Roosevelt ran unopposed in the Democratic primary, held on May 5, 1936.

Republican primary
U.S. Senator William Borah from Idaho and former South Dakota Governor Warren E. Green (leading a "No Preference" delegate list) faced off in the Republican primary, held on May 5, 1936.

Results
The general election was held on November 3, 1936. Armstrong County did not participate.