South Dakota Codified Laws — Title 10 (Taxation)
SDCL § 10-56-21 — Surplus after sheriff's collections--Payment to owner or deposit with clerk of courts
Any surplus remaining after paying the taxes, penalty, interest, and costs shall be returned to the owner or, if the owner cannot be found, shall be deposited with the clerk of courts for the benefit of any person who may be entitled to it.
Source: official text