Indonesia is often regarded as the largest Islamic country in the world, with a population of over 270 million people. However, the question of whether Indonesia is truly an Islamic country is a complex and multifaceted one.

By far the majority of Indonesian people – almost 90% – identify themselves as Muslims. This makes Indonesia the country with the largest Muslim population in the world. As such, Islam holds a prominent place in Indonesian society and culture, and it constitutes a coherent group.

Despite the overwhelming majority of Muslims in Indonesia, the country is not an Islamic state. Indonesia's constitution, which was drafted in 1945, does not designate a state religion. Instead, it guarantees freedom of religion to all its citizens. This means that while Islam is the dominant religion in Indonesia, the country is officially a secular state.

One of the reasons behind Indonesia's status as a non-Islamic state is its commitment to diversity. Indonesia is a diverse country, with over 300 ethnic groups and more than 700 languages spoken across its archipelago. This diversity is reflected in the country's religious landscape, with significant populations of Christians, Hindus, Buddhists, and adherents to indigenous beliefs.

Despite its official status as a secular state, Islam still plays a significant role in Indonesian society. The five pillars of Islam – faith, prayer, charity, fasting, and pilgrimage – are observed by many Indonesians, and Islamic customs and traditions are woven into the fabric of daily life.

Overall, while Indonesia is not an Islamic country in the traditional sense, Islam holds a crucial place in Indonesian society and culture. The country's commitment to diversity and pluralism sets it apart from many other Muslim-majority nations, and its citizens enjoy a range of religious freedoms.