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. This location at 20 S Montgomery St offers walk-in passport services, with customers praising the friendly and patient staff, who have gone above and beyond to ensure timely and efficient service, even for heavy packages. Reviewers highlight the professionalism and politeness of the employees, with one customer describing their passport application experience as the best they've ever had at a post office.