USPS Location
- Winnebago
105 Landmark Dr, Winnebago, IL 61088
815-335-1179
Bulk Mail Acceptance, Bulk Mail Account Balance, Bulk Mail New Permit, Burial Flags, Duck Stamps, General Delivery, Money Orders (Domestic), Money Orders (Inquiry), Money Orders (International), PO Box Online, Pickup Accountable Mail, Pickup Hold Mail, Priority Mail International