The world’s Muslim population is estimated at about 2.07 billion people in 2026, or a little over 25% of the global population. Another recent estimate puts it at roughly 2 billion people, about 24.1% of the world’s population.

Quick Scoop

Muslims are the world’s second-largest religious group after Christianity. Estimates vary a bit by source because population counts depend on surveys, censuses, and projection methods.

Context

  • A recent source estimated 2,066,273,897 Muslims worldwide as of July 6, 2026.
  • Older global studies put the number at 1.57 billion in 2009 and projected continued growth afterward.
  • The share of the world population has also risen over time, with projections showing continued increase.

Bottom line

A safe current answer is: about 2.07 billion Muslims worldwide.