Have you ever thought about how the world’s religions map to the population, that is, how many people are this religion or that, what religions are the most popular on the planet, and the like?  Adherents.com has a number of interesting statistics about religions.

For example, there are 116,000 Spiritualists in the US.  Spiritualism is listed in the top 20 religions, and in the top 10 of organized religions (in the US).  And non-religious accounts for 16% of the world population.

It’s nice to find this kind of stuff in one place that’s redily accessible when you want it.