According to a report by The Nilson Report, Citi Bank was the leading credit card issuer in 2020, with 95 million credit cards. It was closely followed by Chase bank, with just a margin of 12.6% at 83 million credit cards. The two were the only banks that issued over 80 million credit cards in the period. USAA and U.S. Bank trailed in the list with 10 and 14 million credit cards, respectively.