How many Amex Platinum card holders are there?

How many Amex Platinum card holders are there?

Here’s the stats on what is known. Circulation figures for 2017 suggest that outside the U.S., there are about 400,000 Platinum Cards, and 84,000 Centurion Cards. In the United States, TimeInc reports that American Express Platinum Card and Centurion membership has increased 23% since 2010.