Which Country Uses Facebook the most?

[Vish]

Facebook is an online social networking service.
Facebook was started on February 4, 2004 by Mark Zuckerberg with his college roommates and fellow Harvard University students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes.
It gradually added support for students at various other universities before it opened to high-school students, and eventually to anyone aged 13 and over.
As per my opinion India is presently topmost country where FB used frequently.

[Rose Biswas]

No, India isn't on #1. USA is on the top.
Heres the top 5 countries with the number of people using it,
1. USA - 165 million
2. Brazil - 65.6 million
3. India - 61.7 million
4. Indonesia - 48.8 million
5. Mexico - 35.8 million