Largest Population In The World 2024 By Religion. Lists of the populations of the world’s religions as of 2020 reveal a varied collection of religious traditions old and new, big and small, centrally organized and diffuse. About 85% of the world's people identify with a religion.

Each nation contrives a unique religious fabric with their weave of faiths, making the study of religious populations by country an insightful endeavor. Our data set encompasses ranked religious populations across 222.