 Its last recorded population was 1,578,722 in 2015. estimated metro population in 2020 is 2.042 million, making it the third-most populated city in the kingdom.Pilgrims more than triple this number every year during the "Ḥajj" pilgrimage, observed in the twelfth Hijri month of "Dhūl-Ḥijjah".Makkah is the birthplace of Muhammad.