1. There are currently 1.8 billion Muslims worldwide, making up 24.1% of the global population. This number is projected to increase to 2.76 billion by 2050, accounting for 29.7% of the world's population. 2. The top 10 countries with the largest Muslim populations in 2010 and projected for 2050 are listed. Indonesia, Pakistan, and Nigeria are expected to surpass India as the country with the largest Muslim population by 2050. 3. Muslim-majority countries span a wide range of economic classifications by the World Bank, from low-income to high-income. However, many Muslim-majority countries, especially in Africa, still face issues of poverty, gender