U S Government--post Office, For Zip Code Information Hamer, SC 29547 Phone : (843) 774-8233 Business Category Social Service & Welfare Organizations Post Offices Information & Referral Services Government Offices & Public Schools U S Government--post Office Hamer, SC 29547 Phone : (843) 774-8233 Business Category Post Offices Government Offices & Public Schools Post Office - Hamer 2809 Highway 301 N Hamer, SC 29547 Phone : (843) 774-8233 Post Office - Hamer Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (843) 774-3767