Moore County District Clerk 715 S Dumas Ave # 109 Dumas, TX 79029 Phone : (806) 935-4218 Business Category County Government-Courts Courts Moore County Of--county Attorney, District Clerk Courthouse Dumas, TX 79029 Phone : (806) 935-4218 Business Category Government Offices-County Government Offices & Public Schools Moore County--court House, District Clerk Diane Hoefling Dumas, TX 79029 Phone : (806) 935-4218 Business Category Government Offices-County Government Offices & Public Schools