What’s U.S. Religion Worth? $1.2 Trillion, Says one Demographer: This article can help students realize the scope and ripple effect of religion throughout culture and society. Religion is big bucks according to a new comprehensive study. Comparatively, religion is the 15th largest national economy in the world, ahead of 180 other countries in terms of value, and larger than the global revenues of the top 10 tech companies, including Apple, Amazon and Google.