Foss:      50-60%      60-70%      70-80%      80–90% Joe Foss Republican Joe Foss Republican Measure 9 Amendment A Amendment E Amendment G The 1956 South Dakota gubernatorial election was held on November 6, 1956.

Incumbent Republican Governor Joe Foss defeated Democratic nominee Ralph Herseth with 54.39% of the vote.

Primary elections were held on June 5, 1956.

[1]