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Who We Are

Southeast CASA serves children in Yankton, Clay, Bon Homme, Turner, and Union counties in South Dakota

Our mailing address is :
Southeast CASA 
P.O. Box 7017 
Yankton, SD  57078-7017

As of October 1, 2020, our Main Office in Yankton is at 413 W. 15th Street, Suite 108.

Our satellite office is in Vermillion (no mail delivered to this address) in the Community Connections Center building at 9 Court Street.

  • First National Bank
    First National Bank

    Major Sponsor of Southeast CASA

  • Yankton Medical Clinic
    Yankton Medical Clinic
  • First National Bank
    First National Bank

    Major sponsor of Southeast CASA

  • Sanford Vermillion
    Sanford Vermillion

    Sponsor of CASA training

  • Wintz & Ray Funeral Home
    Wintz & Ray Funeral Home

    Annual sponsor

  • Vishay

    Annual sponsor

  • Kolberg Pioneer
    Kolberg Pioneer

    Annual sponsor

  • United Way Yankton
    United Way Yankton

    Yankton County agency

  • United Way Vermillion
    United Way Vermillion

    Clay County agency