Just one week ago we told you that Pottermore had hit one million sorted users.

Since then, that number has literally doubled.

As of April 23 the site surpassed two million sorted members, according to the count in the Great Hall.

This is very quick growth, especially considering there was not much of a promotional campaign when it publicly launched on April 14.

We’re eager to see how much higher it will go!

Gryffindor currently has the most students (520,000 members) with Hufflepuff in second (503,000), Slytherin in third (500,000) and Ravenclaw in fourth (475,000).