Passport Application Services - Grafton 419 E Main St Grafton, IL 62037 Phone : (618) 786-3309 Business Category Passport Application Services Toll-Free           (800) ASK-USPS United States Government--post Offices Grafton, IL 62037 Phone : (618) 786-3309 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools Post Office - Grafton 419 E Main St Grafton, IL 62037 Phone : (618) 786-3309 Business Category Post Offices Toll-Free           (800) ASK-USPS