Bushfield:      50-60%      60-70%      70-80%      80-90% Harlan J. Bushfield Republican Harlan J. Bushfield Republican Measure 9 Amendment A Amendment E Amendment G The 1940 South Dakota gubernatorial election was held on November 5, 1940.

Incumbent Republican Governor Harlan J. Bushfield sought re-election to a second term.

After winning the Republican primary by a large margin, he faced Democrat Lewis W. Bicknell, former Day County State's Attorney, in the general election.

Though Bushfield underperformed Republican presidential nominee Wendell Willkie, who won the state in a landslide, he nonetheless defeated Bicknell by a wide margin to easily win re-election.