WASHINGTON — It's probably not an exaggeration to say that the banking industry relies on the post office more than any other sector of the U.S. economy.

More than half of all statements and bills sent through the mail come from banks, savings and loans, and credit unions, according to the U.S. Postal Service. And those 4 billion or so mailings per year are matched by roughly the same number of advertising offers from credit-card issuers.

Limited Time Offer

Save $400 off your subscription. Special offer ends April 30, 2017.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.