How many people play poker in the world?

Poker is a popular card game played worldwide, and the statistics are staggering. To provide some insight into how many people play poker, the World Poker Tour (or WPT) states that from online poker alone, there are 100 million online poker players worldwide, with 60 million in the United States alone.

How is there 60 million US online poker players, when it's illegal in there.

Well #1 you are quoting a poker site so, even though you saw it on the internet it's not necessarily true & #2, are you really of the opinion that online poker is illegal everywhere in the U.S.?

I know that in my country there are not many because gambling is not compatible with the local precepts.
That's why you will never see a casino in Algeria