Islam is the dominant religion in Egypt, with approximately 90% of Egyptians identifying as Muslims. The majority of Egyptian Muslims are adherents of Sunni Islam, while a small minority adhere to Shia Islam. Since 1980, Islam has served as Egypt's state religion. Due to the lack of a religious census, owing to the alleged undercounting of non-Muslim minorities in Egyptian censuses, the actual percentage of Muslims is unknown; the percentage of Egyptian Christians, who are the second-largest religious group in the country, is estimated to be 10% of the population.
A study at the University of Kent, citing a 2018 survey by Arab Barometer, stated that around 11% of Egyptians identified themselves as not religious. While in the same 2018 Wave survey, 47.2% of Egyptians said they were religious, 39.8% said they were somewhat religious and 10.4% said they were not religious. In the same Arab Barometer 2018 Wave V survey, it was reported that 90.4% said they were Muslim, 9.6% said they were Christian, and 0.1% said they had no religion.
