Magistrate Office 1202 Broadway Denison, IA 51442 Phone : (712) 263-6002 Business Category Government Offices-State Legislative Bodies Iowa State Of Court House Denison, IA 51442 Phone : (712) 263-6002 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Iowa State Of--court Attendant, East Conference Room Denison, IA 51442 Phone : (712) 263-6002 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools