List of US Post Office Stores in South Gate, CA Outlet Note Regular Brands US Post Office California South Gate Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - South Gate 12129 Garfield Ave (562) 633-0308 US Post Office outlet - South Gate 3270 Firestone Blvd (323) 566-4165 US Post Office outlet - South Gate 10120 Wright Rd (323) 566-3715 People Also Viewed