Castro County - Dimmitt--county Auditors Ofc Dimmitt, TX 79027 Phone : (806) 647-3771 Business Category Government Offices-County Government Offices & Public Schools County Auditor 114 S Broadway St Dimmitt, TX 79027 Phone : (806) 647-3771 Business Category Government Offices-County Accounting Auditing & Bookkeeping Services Public Finance Taxation & Monetary Policy Auditing Services Government Offices & Public Schools