USPS Location
- Winthrop Harbor
1225 Sheridan Rd Ste F, Winthrop Harbor, IL 60096
847-731-8215
Bulk Mail Acceptance, Business Reply Mail Account Balance, Business Reply Mail New Permit, Duck Stamps, General Delivery, Global Express Guaranteed, Money Orders (Domestic), Money Orders (Inquiry), Money Orders (International), PO Box Online, Packaged Stamps, Pickup Accountable Mail, Pickup Hold Mail, Priority Mail International