What percentage of Mexicans are atheists?

Question

And do you have polling results to back up your claim?

Answer 1

Soon as Mexicans start lining up to register as atheists, I'll get the list and let you know

Answer 2

A Few

3.1 % of 108 million is still 3+ million.

Roman Catholic 76.5%, Protestant 6.3% (Pentecostal 1.4%, Jehovah's Witnesses 1.1%, other 3.8%), other 0.3%, unspecified 13.8%, none 3.1% (2000 census)

Answer 3

Go get a Mexican history book.

It's a CATHOLIC country.  The religion is DEEPLY embedded.

Prior to being "converted" they were a polytheistic society.  I'd guess no one is an atheist.