99% of the inhabitants of Somalia observe what religion?

The religious landscape of Somalia is remarkably uniform, with more than 99% of the population adhering to Sunni Islam. This near-total observance of a single faith is the result of a long and deeply ingrained history. Islam first arrived on the northern Somali coast from the Arabian Peninsula in the 7th century, shortly after the Hijra. This makes Somalis one of the earliest non-Arab peoples to convert to the faith. The port city of Zeila is home to the Masjid al-Qiblatayn, a mosque with two mihrabs (prayer niches) that is considered the oldest in the country, dating back to this initial period.

The spread of Islam throughout the region was largely a peaceful process, facilitated by Muslim merchants and traders who integrated with the local population. Over the centuries, this led to the establishment of powerful Islamic sultanates in flourishing port cities like Mogadishu, which became important commercial and Islamic centers. The faith is so deeply woven into the fabric of society that it influences everything from social norms and legal frameworks to national identity.

This profound connection is reflected in the country's governance. The Somali Provisional Constitution designates Islam as the state religion and requires all laws to comply with the general principles of Sharia, or Islamic law. This formal legal system often operates alongside Xeer, the traditional Somali customary law, which itself is influenced by Islamic principles. The dominant school of Islamic jurisprudence is the Shafi'i school, with a minority following the Hanafi school. The strong societal pressure to adhere to Sunni traditions means that conversion to other religions is socially unacceptable.