Are there more christians in the world than non-christians?

As of 2023, there are more Christians in the world than any other religious group, with estimates suggesting around 2.3 billion Christians globally. In comparison, the total number of non-Christians, which includes adherents of other religions and those who identify as non-religious or atheists, is roughly comparable in number but varies widely depending on definitions and Demographics. Thus, while Christians represent the largest single religious group, non-Christians collectively outnumber them when combined.