Yankton Youth Center Yankton, SD 57078 Phone : (605) 668-5284 Business Category Government Offices-City Village & Twp Legislative Bodies Yankton City Of--youth Center Yankton, SD 57078 Phone : (605) 668-5284 Business Category Government Offices-City Village & Twp Social Service & Welfare Organizations Youth Organizations Centers & Clubs Individual & Family Social Services Government Offices State & Local Government Offices & Public Schools