Global religious geography and demographic clusters
Christianity dominates the West, Latin America, and sub-Saharan Africa. Islam concentrates in the Middle East, North Africa, and South Asia. Hinduism and Buddhism are primarily South and Southeast Asian. Judaism is globally dispersed but concentrated in Israel. Secular or unaffiliated populations are highest in Northern Europe and East Asia. These patterns reflect colonial history, trade routes, missionary activity, and regional cultural traditions.
Overlap and coexistence in multifaith regions
Many countries are religiously mixed. India has Hindu, Muslim, Christian, Sikh, Buddhist, and Jain populations. Lebanon and Turkey span Islamic, Christian, and secular communities. Global migration is adding religious diversity to traditionally homogeneous nations. These distributions are not static: secularization is rising in developed nations, while evangelical Christianity is spreading in Africa, and Islam is growing globally due to both conversion and demography.