Final answer:
The information provided does not specify the exact percentage of U.S. adults with credit cards but indicates that a large portion of the population are cardholders. Almost 200 million Americans were cardholders in 2021, suggesting a high percentage.
Step-by-step explanation:
What percentage of adults living in the United States have a credit card? Based on the information provided, it is not explicitly mentioned what percentage of adults in the United States have a credit card. However, through 2021, we know that almost 200 million Americans were cardholders.
Given the U.S. adult population is greater than 200 million, it suggests that the percentage is likely around or above 75% but lower than 95%, as not all Americans are adults and some may hold multiple cards.
Moreover, nearly 180 million Americans were cardholders in 2012, and more recently in 2021, just over 45% of American families carried some credit card debt.
While these figures do not directly confirm the exact percentage of adults with credit cards, they do indicate widespread use of credit cards across the adult population in the U.S.