Islam is the most common religion in the Indonesian province of West Sumatra, embraced by 97.42% of the population. The Muslim population increases to 99.6% if it excludes the Mentawai Islands, where the majority of the non-Muslim (Protestant) West Sumatrans reside.[1] Islam in West Sumatra is predominantly Sunni, though there is a small Shia Islamic pocket within the coastal city of Pariaman. The Minangkabau people, indigenous to West Sumatra, comprise 88% of the West Sumatran population today and have historically played an important role within Indonesia's Muslim community.[2] Up until today, the region is considered one of the strongholds of Islam in Indonesia.