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 8.8 million as of October 2018. It is located on the west bank of the Nile, 4.9 km (3 mi) southwest of central Cairo, and is a core city of the Greater Cairo metropolis. Giza lies less than 30 km (18.64 mi) north of Memphis (Men-nefer), which was the capital city of the first unified Egyptian state from the days of the first pharaoh, Narmer.