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Turning Eighteen

SDCL § 26-1-1 — minors are persons under eighteen years of age, counted from the first minute of the day of birth

Minors are persons under eighteen years of age, counted from the first minute of the day of birth to the same minute of the corresponding day.

  • SDCL § 26-1-1
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An individual eighteen or more years of age who is of sound mind may make a will.

Alcohol, and some other things, wait until twenty-one years. A particular question is one for a licensed South Dakota attorney.

  • SDCL § 26-1-1
  • SDCL § 35-9-2
Sources for this section (3)
  1. SDCL § 26-1-1 — Age of minority; Calculation of age
  2. SDCL § 29A-2-501 — Who may make a will
  3. SDCL § 35-9-2 — Purchase, possession, or consumption of beverage by person under twenty-one years prohibited; Exception; Misrepresentation of age; Violation as misdemeanor

Legal information, not legal advice. Verified as of October 2026. Applying it to a particular situation is the work of a licensed South Dakota attorney.

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