Jordan is divided into twelve governorates (muhafazah) by the administrative divisions system of the Ministry of Interior. In 1994, four new governorates were created: Jerash, Ajloun, Madaba and Aqaba. Jerash Governorate and Ajloun Governorate were split from Irbid Governorate, Madaba Governorate was split from Amman Governorate and Aqaba Governorate was split from Ma'an Governorate. Governorates are further subdivided into districts (liwa) and often into sub-districts (qda).
Governorates of Jordan Wikipedia
Geographically, the governorates of Jordan are located in one of three regions: the North Region, Central Region and the South Region. The three geographical regions are not distributed by area or populations but rather by geographical connectivity and distance among the population centres. The South Region is separated from the Central Region by the Mountains of Moab in Karak Governorate. The population centres of the Central and North Region are separated geographically by the mountains of Jerash Governorate. Socially, the population centres of Amman, Salt, Zarqa and Madaba form together one large metropolitan area in which business interactions in these cities are under the influence of Amman while the cities of Jerash, Ajloun, and Mafraq are mostly under the influence of the city of Irbid.