Passport Application Services - Sumter 311 N Main St Sumter, SC 29150 Phone : (803) 773-9311 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Fax           (803) 773-7132 Automated Postal Center - Sumter 311 N Main St Sumter, SC 29150 Phone : (803) 773-9311 Business Category Automated Postal Centers Toll-Free           (800) ASK-USPS Fax           (803) 773-7132 Post Office - Sumter 311 N Main St Sumter, SC 29150 Phone : (803) 773-9311 Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (803) 773-7132