Following are the 20 largest cities in Mexico. Twelve of them are over one million cities, and all of them account for 44% of total Mexican population (2010 census):
Mexico City
Tokyo, Japan is the world's largest metropolitan area that has a population over 14 million. It is also one of the fastest-growing metropolitan areas in the world.
Mexico city, is i believe the 3rd or the first fastest growing city in the world.. regarding population. it is the biggest if you are talking about it's actual size. It only behind Tokyo by a couple of millions and New York by like 20,000 people..
Mexico City
the population is growing because of the rural (countryside) to urban(city) migration
Phoenix, Arizona was the fastest growing city in the United States in 1948. It experienced a significant population increase during that time due to factors such as the post-World War II economic boom and increased migration to the area.
"Bamakó, population 1,690,471 (2006), is the capital and largest city of Mali, and currently estimated to be the fastest growing city in Africa (6th fastest in the world)."**Referenced from: http://en.wikipedia.org/wiki/BamakoIn west Africa
Phoenix is the fifth most populous city in the United States, following New York City, Los Angeles, Chicago, and Houston. With a growing population, Phoenix is one of the fastest-growing cities in the country.
it is banglore
It is Philadelphia
Dhaka, Bangladesh.
hyderabad