USPS Location
- Baldwin
109 S 5th St, Baldwin, IL 62217
618-785-2271
Bulk Mail Acceptance, Bulk Mail Account Balance, Business Line, Business Reply Mail Account Balance, Business Reply Mail New Permit, Duck Stamps, General Delivery, Money Orders (Domestic), Money Orders (Inquiry), PO Box Online, Packaged Stamps, Philatelic Services, Pickup Accountable Mail, Pickup Hold Mail, Priority Mail International