Manila, officially the City of Manila, is the capital of the Philippines and the most densely populated city proper in the world. The term "Manila" is commonly used to refer to the whole metropolitan area, the greater metropolitan area or the city proper. The officially defined metropolitan area called Metro Manila, the capital region of the Philippines, includes the much larger Quezon City and the Makati Central Business District. It is the most populous region of the country, one of the most populous urban areas in the world,and is one of the wealthiest regions in Southeast Asia.The city proper is home to 1,780,148 people in 2015,and is the historic core of a built-up area that extends well beyond its administrative limits. With 71,263 people per square kilometer, Manila is also the most densely populated city proper in the world. The city is located on the eastern shores of Manila Bay. The Pasig River flows through the middle of the city, dividing it into the north and south sections. Manila is made up of 16 administrative districts: Binondo, Ermita, Intramuros, Malate, Paco, Pandacan, Port Area, Quiapo, Sampaloc, San Andres, San Miguel, San Nicolas, Santa Ana, Santa Cruz, Santa Mesa and Tondo, while it is divided into six districts for its representation in Congress and the election of the city council members. In 2016, the Globalization and World Cities Research Network listed Manila as an "alpha –" global city.