how many pieces of mail does the usps deliver each day
United States Postal Service The United States Postal Service employs some 617,000 workers, making it the third-largest civilian employer in the United States behind the federal government and Wal-Mart.[39] In a 2006 U.S. Supreme Court decision, the Court noted: "Each day, according to the Government's submissions here, the United States Postal Service delivers some 660 million pieces of mail to as many as 142 million delivery points."[40] As of 2016, the USPS operates 31,585 post offices and locations in the U.S., and delivers 153.4 billion pieces of mail annually.[2]
Tracking number A UPS tracking number, for domestic packages within the United States, will usually start with "1Z" followed by a 6 character shipper number (numbers and letters), a 2 digit service level indicator, and finally 8 digits identifying the package, for a total of 18 characters.[citation needed]