usps tracking in usa allows customers to track the status of their packages within the United States. USPS offers several tracking services, including those for Priority Mail, First-Class Mail, and Express Mail. Customers can easily track packages online using the USPS website or mobile app by entering the tracking number provided at the time of shipping. USPS tracking provides real-time updates on the package’s location, delivery status, and estimated arrival time, helping customers stay informed about the progress of their shipments.