Egypt is divided, for the purpose of public administration, according to a three-layer hierarchy and some districts are further subdivided, creating an occasional fourth layer. It has a centralized system of local government officially called local administration as it is a branch of the Executive.
Egyptian Population Density in pre-2013 administrative divisions[needs update]
Economic regions of Egypt
Presidential Decree 495/1977 divided Egypt into eight economic regions for economic and physical planning purposes, that do not have any new administrative representation in the local government hierarchy.
Economic regions of Egypt
Greater Cairo Region