Egypt lies primarily between latitudes 22° and 32°N, and longitudes 25° and 35°E. At , it is the world's 30th-largest country. Due to the extreme aridity of Egypt's climate, population centres are concentrated along the narrow Nile Valley and Delta, meaning that about 99% of the population uses about 5.5% of the total land area. 98% of Egyptians live on 3% of the territory.