2006 South Dakota gubernatorial election

2006 South Dakota gubernatorial election
	County results ; Rounds: 50–60% 60–70% 70-80% 80–90%; Billion: 40–50% 50–60% 60–70%
Governor before election; Mike Rounds; Republican	Elected Governor ; Mike Rounds; Republican

The 2006 South Dakota gubernatorial election was held on November 7, 2006. Incumbent Republican Governor Mike Rounds defeated Democrat Jack Billion to serve a second term as governor.