Please include the city of Changsha , China.
This is the capital of Hunan, a province of Southcentral China.

http://en.wikipedia.org/wiki/Changsha

population: 6,017,600 (2003 population census).


located at 28°12'0.00"N 112°58'12.00"E

It covers an area of 11,819 sq. kilometers and has a population of 6,017,600 (2003 population census).

Wikipedia has a way with Chinese cities of putting in it's provincial population rather then the population for the city itself. In this case the city of Changsha has a reported population by other sourse of around 1.5 million but wiki gives it over 6million? The quote about the population covering an area of nearly 12 square kilometers is interesting, that is equivalent to 3000km X 4000km - that is a BIG area!

City added.