The U.S. Postal Service reported total revenue of $17.5 billion for the second quarter of 2018 (January 1, 2018 – March 31, 2018), an increase of $235 million, or 1.4 percent, compared to the same quarter last year. Shipping and Packages revenue grew by $445 million, or 9.5 percent, while First-Class and Marketing Mail revenue fell by a combined $181 million.
Source: USPS