Which city has a larger population, Yangzhou or Chengdu?
Chengdu Chengdu ( ), formerly romanized as Chengtu, is a sub-provincial city which has served as capital of China's Sichuan province. It is one of the three most populous cities in Western China (the other two are Chongqing and Xi'an). s of 2014 , the administrative area houses 14,427,500 inhabitants, with an urban population of 10,152,632. At the time of the 2010 census, Chengdu was the 5th-most populous agglomeration in China, with 10,484,996 inhabitants in the built-up area including Xinjin County and Deyang's Guanghan City.
Lanzhou Lanzhou is the capital and largest city of Gansu Province in Northwest China. The prefecture-level city, located on the banks of the Yellow River, is a key regional transportation hub, connecting areas further west by rail to the eastern half of the country. Historically, it has been a major link on the Northern Silk Road. The city is also a center for heavy industry and petrochemical industry. Lanzhou was previously ranked as one of the cities with the worst air quality in the world, due to industrial pollution and its situation in a narrow river valley. Significant recent earthworks, removing parts of the sand and soil mountains surrounding the city, have succeeded in ventilating the city and allowing the displacement of air pollution. In 2015 the city was awarded China's climate progress title.