Send mail and packages with USPS online shipping options. Choose your mail service by delivery speed, cost, and additional services like tracking and insurance. USPS hires a diverse workforce who is interested in serving the public. Explore the many open full-time, part time and seasonal jobs that offer a range of benefits and opportunities. 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. 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. The Official website for changing your address with the United States Postal Service Enter a corporate or residential street address, city, and state to see a specific ZIP Code ™. Find by Address 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. For general information, how-to steps, or to learn more about USPS products and services, check our FAQs. The most common questions have to do with tracking packages or delayed delivery. The U.S. Postal Service (USPS) provides mail processing and delivery services to individuals and businesses in the U.S. USPS.com® - USPS Tracking®.