What is the largest Muslim country in the world?

Indonesia is the largest Muslim country in the world due to its vast population, with over 268 million people, and the majority of them being Muslims. Islam is the predominant religion in Indonesia, making up around 87% of the population. This can be attributed to the historical influence of Islamic traders and missionaries in the archipelago, as well as the spread of Islam through local kingdoms and indigenous communities over centuries. With its diverse culture and more than 17,000 islands, Indonesia's strong Islamic identity has contributed to its status as the largest Muslim country globally.