The 1970 Minnesota State Auditor election was held on 3 November 1970 in order to elect the state auditor of Minnesota. Republican nominee Rolland Hatfield defeated Democratic–Farmer–Labor nominee Jon Wefald and Communist nominee Betty M. Smith.
General election.
On election day, 3 November 1970, Republican nominee Rolland Hatfield won the election by a margin of 9,731 votes against his foremost opponent Democratic–Farmer–Labor nominee Jon Wefald, thereby retaining Republican control over the office of state auditor. Hatfield was sworn in as the 12th state auditor of Minnesota on 5 January 1971.
Results.
! scope="col" colspan="2" style="width: 15em" |Party
! scope="col" style="width: 17em" |Candidate
! scope="col" style="width: 5em" |Votes
! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align:right;" | Total votes
References.
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