Giza is the second-largest city in Egypt after Cairo and fourth-largest city in Africa after Kinshasa, Lagos and Cairo. It is the capital of Giza Governorate with a total population of 9.2 million as of 2021. It is located on the west bank of the Nile, 4.9 km (3 mi) southwest of central Cairo, and is a part of the Greater Cairo metropolis. Giza lies less than 30 km (18.64 mi) north of Memphis, which was the capital city of the first unified Egyptian state from the days of the first pharaoh, Narmer.