The United States Postal Service (USPS) is the only organization in the country that regularly delivers to every residential and business address. USPS is committed to providing secure, reliable, and affordable delivery of mail and packages to more than 157 million addresses in the United States, its territories, and its military bases worldwide. Processing and delivering 47 percent of the world's mail, USPS manages over 30,000 retail locations and constantly innovates to make customer experiences better. Customers praise the friendly and helpful USPS employees, who do their best to assist despite limited resources and long wait times. The Post Office location at 2111 San Pablo Ave is particularly well-regarded, with reviewers describing the staff as "super friendly" and the overall experience as the "best one around" compared to other nearby locations.