How many Magic The Gathering players are there worldwide?

Answer 1

there is over 15,000 cards atleast if you collected one of each from alpha to the newest set and more are created all the time, so to get a dead on number would almost be impossible. just count them yourselves from alpha to the newest set, let me know what you get to before you quit.

so i used a site that had all the cards from alpha to present and i found out that the acctual number is 10618 including the five colors of lands

As of June 12, 2010, I counted 11,179 different cards. I did some quick math using the gatherer, so I might be off a few.

As of Jan 31st, 2011, there are 20,043 unique cards. This includes EVERY card, from promo cards to tokens.

Answer 2

It is estimated that there are around 6 million participants of Magic: The Gathering worldwide, in up to 70 different countries.

Answer 3

That's imposible to answer sorry