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 County results Janklow: 50–60% 60–70% 70–80% McKellips: 50–60% 60–70% 80–90% | ||||||||||||||||||||
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| Elections in South Dakota |
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The 1978 South Dakota gubernatorial election was held on November 7, 1978, to elect a Governor of South Dakota. Republican nominee Bill Janklow was elected, defeating Democratic nominee Roger D. McKellips.