If a name is written on a ballot in an attempt to cast a write-in-vote, the write-in vote may not be counted. However, all other votes for which the voter's intent may be determined shall be counted.
S.D. Codified Laws § 12-20-21.2
Write-in votes not to be counted--Other votes on ballot
Source: SL 2002, ch 76, § 5.
Official source: South Dakota Legislature. Reproduced from public-domain South Dakota statutes; confirm against the official source for the current text. Not legal advice.