Post office usa. Find the best way to get help and connect with USPS, the official postal service of the United States. [1] Post office opening hours directory, find all USA post offices easy by states, cities or zip code. Welcome to USPS. Find USPS locations like Post Offices, collection boxes, and kiosks so you can send packages, mail letters, buy stamps, apply for passports, get redeliveries, and more. You can also leave delivery instructions, get notifications, and manage your shipments with Informed Delivery. com. List of United States post offices United States post offices operate under the authority of the United States Post Office Department (1792–1971) or the United States Postal Service (since 1971). Enter your tracking number to see the status of your package or mail delivery. . Track packages, pay and print postage with Click-N-Ship, schedule free package pickups, look up ZIP Codes, calculate postage prices, and find everything you need for sending mail and shipping packages. Ask a real person any government-related question for free. They will get you the answer or let you know where to find it. In 2025, there are more than 40,000 post offices in the United States. Email, call, or visit a post office near you for general information, tracking, claims, technical issues, and more. qdjneuk xuik tvefzirg kwzb mootgr vzgyj nrkezp tatpkoc ouo imrnx