Are supporters of creationism to be found only in the US?

I think you will find creationists in the Middle East, Africa, India, China and the rest of the Orient. Actually almost every culture has some explanation of how the world began but possibly not the exact on that we speak of in the US. I don't believe you"ll find too many that begin with a "big bang" with the exception of European countries and thereabouts. Everyone has a Hell too except the Hebrews