Welcome to USPS.com. 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. Discover fast, reliable global shipping and logistics solutions with UPS. Explore our shipping and tracking services and streamline your supply chain today. As the United States marks the 250th anniversary of its birth, the U.S. Postal Service pays tribute to the document that put America’s founding ideals in writing with the release of the Declaration of Independence Forever stamp. Send mail and packages with USPS online shipping options. Choose your mail service by delivery speed, cost, and additional services like tracking and insurance. Everyone living in the United States and its territories has access to postal products and services and pays the same postage regardless of their location. The United States Postal Service (USPS; also known as the Post Office, U.S. Mail, or simply the Postal Service) is an independent agency of the executive branch of the United States federal government responsible for providing postal service in the United States, its insular areas and associated states. Security: It Comes With the Stamp® The Postal Inspection Service is standing guard and ready to help. The U.S. Postal Service (USPS) provides mail processing and delivery services to individuals and businesses in the U.S. Find out how to file a complaint with the U.S. Postal Service about lost or stolen mail or mail fraud. Learn where to complain about a postal employee or facility. USPS, an acronym for United States Postal Service, is the official postal service of the United States of America. It is an independent agency of the American federal government, responsible for collecting, sorting, transporting and distributing mail and parcels across the entire national territory.