The 2006 Idaho gubernatorial election was held on November 7, 2006. Incumbent Governor Jim Risch succeeded Dirk Kempthorne, who resigned May 26 to become Secretary of the Interior. Risch served as governor until the end of the term, but had committed to a reelection campaign for Lieutenant Governor before Kempthorne's appointment and subsequent resignation.
This was the last time that a Democrat won over 40% of the vote in Idaho.
Republican primary.
Results.
! scope="col" colspan="2" style="width: 130px"|Party
! scope="col" style="width: 17em"|Candidate
! scope="col" style="width: 5em"|Votes
! scope="col" style="width: 3.5em"|%
! scope="col" style="width: 3.5em"| ;templatestyles src="Template:Tooltip/styles.css" / ;±%
! colspan="3" style="text-align: right; margin-right: 0.5em" | Majority
! colspan="3" style="text-align: right; margin-right: 0.5em" scope=row | Turnout
! style="text-align:right;" | Swing
References.
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