Who is the oldest person you know in South Dakota? Each year, the South Dakota Health Care Association’s (SDHCA) Century Club seeks to find the answer.If you know of a current living South Dakotan born before Jan. 29, 1916, making this person at least 109 years young, he or she may be our state’s oldest living person. SDHCA would like to honor him or her with the 2025 Centenarian of ...