In 2008 , Coptic groups claimed to compose some 12 -- 16 million people with Egypts population growth that number stands at 15 - 21 as of 2017 .
That number is very hard to estimate since there has been no official census on religion in many years .
In 2008 , Coptic groups claimed to compose some 12 -- 16 million people with Egypts population growth that number stands at 15 - 21 as of 2017 but that number is very hard to estimate since there has been no official census on religion in many years .