Franklin County Mappg Dept-it 300 E Main St # 204 Union, MO 63084 Phone : (636) 583-6390 Business Category Government Offices-County Legislative Bodies Franklin County Of--assessor-personal Property Div, Mapping Dept Union, MO 63084 Phone : (636) 583-6390 Business Category Government Offices-County Government Offices & Public Schools Franklin County Of--court House, Mapping Dept Union, MO 63084 Phone : (636) 583-6390 Business Category Government Offices-County Government Offices & Public Schools