Bon Homme County Of--auditor 300 W 18th Ave Tyndall, SD 57066 Phone : (605) 589-4212 Business Category Government Offices-County Public Finance Taxation & Monetary Policy Government Offices & Public Schools Bon Homme County Of--tyndall, Auditor Tyndall, SD 57066 Phone : (605) 589-4212 Business Category Government Offices-County Government Offices & Public Schools