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published: 11/13/10
updated: 2/18/14

Religion Statistics

What are the religion statistics for the world? What is the largest religion in the world? What is the fastest growing religion in the world? What religions in the world are in decline? These are a few of the common questions people have about religion statistics. On the following pages you will discover the answers to these questions.

Religion statistics for the world:

Religion statistics for the United States of America:

Other topics

  • The Nones
  • Who are the "nones"? Read about them here.