List of US Post Office Stores in Campbell, CA Outlet Note Regular Brands US Post Office California Campbell Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Campbell 1587 Dell Ave (408) 378-7978 US Post Office outlet - Campbell 51 E Campbell Ave (408) 374-0402 US Post Office outlet - Campbell 500 W Hamilton Ave (800) 275-8777 People Also Viewed