Post Office - Brunsville 230 Oak St Brunsville, IA 51008 Phone : (712) 533-6030 Business Category Post Offices Toll-Free           (800) ASK-USPS United States Government--social Security Admin, Post Office 230 Oak St Brunsville, IA 51008 Phone : (712) 533-6030 Business Category Government Offices-Federal Post Offices Administration Of Social Human Resource & Income Maintenance Programs Government Offices & Public Schools