Sioux City Property Department 405 6th St # 304 Sioux City, IA 51101 Phone : (712) 279-6328 Business Category Government Offices-City Village & Twp Legislative Bodies Sioux City City Of--property Sioux City, IA 51101 Phone : (712) 279-6328 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools