The five religions in order of percentage of the world that follow it from the CIA website is: Christianity (31.4%), Muslim(23.2%), Hinduism(15%), Buddhist(7.1%), and Jewish(.2%). On adherents.com, the percentages aren't exactly the same anymore. Christianity had gone up to 33%. Islam/Muslim dropped to 21%. Hinduism only dropped one percentage to 14%. Buddhist is now 6%. Jewish is still the same percentage. The religions are still in the same order but there are a couple different religions in between them. Judaism is also in the category of "others". Christianity is the only one that went up in percentage. Christianity is still the number one religion followed in the world.