Greater Beirut (; ) is the urban agglomeration comprising the city of Beirut (Beirut Governorate) and the adjacent municipalities over the Mount Lebanon Governorate. It does not constitute a single administrative unit. Greater Beirut geographically stretches south to the Damour River in the Chouf District until it reaches the "Nahr al-Kalb" river in the Keserwan District in the north. It also comprises many towns and cities in the mountains in the Aley District, Baabda District and Metn District Districts, most notably being the cities of Baabda, Beit Mery, Bchamoun and Mtaileb. The conurbation spreads south, east, and north of Beirut city. To the west, the Eastern Mediterranean Sea serves as a natural boundary. Demographics Greater Beirut is equally split between Christians and Muslims: West Beirut is predominantly Sunni (30%). South Beirut is predominantly Shia (15%). East and North Beirut are predominantly Christian (55%), of which 35% Catholic and 20% Orthodox. Other minorities including Druze amount to 1%. List of settlements Ain Aanoub Ain Saadeh Antelias Aramoun Baabda Basateen Bdadoun Bechamoun Beirut Beit Chabab Beit Mery Bourj Hammoud Bourj el-Barajneh Bsalim Choueifat Chemlane Chiyah Damour Dahieh Dbayeh Dora Dekwaneh Hadath Hazmieh Jal el Dib Jdeideh Khaldeh Kfarshima Mansourieh Mkalles Mtaileb Na'ameh Naccache Qornet Shehwan Rabieh Roumieh Yarze Zalka References Beirut Metropolitan areas of Lebanon