Evolving Urban Form: Development Profiles of World Urban Areas

Around the fifth century BCE, Athens may have been the most important city in the West. Like China's Chang'an (modern Xi'an), the "on and off" capital of China, Athens has experienced many severe "ups and downs" throughout its remarkable history. At its ancient peak, Athens is estimated to have had more than 300,000 residents (historic population estimates vary greatly).  read more »

No decade in history has experienced such an increase in urban population as the last. From Tokyo-Yokohama, the world's largest urban area (population: 37 million) to Godegård, Sweden, which may be the smallest (population: 200), urban areas added 700 million people between 2000 and 2010.  read more »

Rio de Janeiro was the capital of Brazil from before independence from Portugal was declared in 1822. That all changed in 1960, when the capital moved to the modern planned city of Brasilia, more than 500 miles (800 kilometers) inland. The move, however, did nothing to slow Rio de Janeiro's growth, as the metropolitan area (as designated by Brazil's census agency, the Instituto Brasileiro de Geografia e Estatística),  added 7 million people – a 150 percent increase in population – over the ensuing 60 years  read more »

The Kuala Lumpur region of Malaysia is generally defined by the state of Selangor and two geographical enclaves (the federal territories of Kuala Lumpur and Putrajaya), carved from the state. These enclaves are the two seats of the federal government. Kuala Lumpur houses the national parliament and Putrajaya the executive and judicial branches.

Population Growth in the Kuala Lumpur Region

The Kuala Lumpur region had a population of approximately 7.1 million, according to the 2010 census. This includes 1.6 million in the federal territory (core city) of Kuala Lumpur and 5.5 million in the suburbs (which include Putrajaya).  read more »

Since 2000, the Bangkok region has experienced annual population growth 2.5 times the rate of growth from 1980 to 2000. By 2010, the Bangkok region – which includes the provincial level city of Bangkok and the provinces of Samat Prakan, Samut Sakhon, Pathum Thani, Nonthaburi and Nakhon Pathom –  was nearing a population of 15 million (Note 1).  read more »

Addis Abeba is the capital of Ethiopia and calls itself the "diplomatic capital" of Africa, by virtue of the fact that the African Union is located here. Yet Ethiopia is still one of the most rural nations in both Africa and the world. Ethiopia also appears to be among the most tolerant. Various forms of Christianity claim account for approximately 65 percent of the population, with the Ethiopian Orthodox Church (Coptic) holding the dominant share. At the same time there is a sizable Muslim minority, at more than 30 percent of the population.  read more »

Among those for whom Paris is not their favorite European city, Barcelona often fills the void. Barcelona is the capital of Spain's Catalonia region. Catalonia has been in the news in recent weeks because of the rising a settlement for independence from Spain, or at a minimum, considerably expanded autonomy. In part, the discontent is driven by a concern about the extent to which more affluent Catalonia subsidizes the rest of Spain. Another driving factor is the interest in separating Catalonian language and culture from that of Spain.  read more »

Zürich is the largest urban area in Switzerland. The core city (stadt) of Zürich is located at the northern end of Lake Zürich, which is glacial and similar to the "finger lakes" of upstate New York. Lake Zürich is approximately 25 miles/40 kilometers long and 1-2 miles/1.5-3 kilometers wide. The urban area extends south along most of the lake and over hills to the East and West and further North.  read more »

São Paulo is Brazil's largest urban area and ranks among the top 10 most populous in the world. Between 1950 and 1975, São Paulo was also among the globe’s fastest growing urban areas. For two decades starting in 1980 São Paulo ranked fourth in population among the world's urban areas, but has been displaced by much faster growing urban areas like Manila and Delhi.  read more »

Istanbul is unique in straddling two continents. The historical city was concentrated on the European side of the Bosporus, the wide, more than 20 mile long strait linking the Sea of Marmara (Mediterranean Sea) in the south to the Black Sea in the north. Nearly all of the historic city was located on a peninsula to the south of the Golden Horn, an inlet off the Bosporus. By 1990, the urban area had expanded to occupy large areas on both sides of the Bosporus.  read more »