Zhengzhou, along with Xi'an, Chengdu, Chongqing and Wuhan, is one of the most important cities in inland China. It is the second largest city in central China, after Wuhan. It is the economic center of the province and the surrounding areas such as southeastern Shanxi and southwestern Shandong. Due to its strategic location in one of the most populous areas in the world (nearly 100 million people in Henan alone) and in China's railway, road and aviation transport networks, Zhengzhou is increasingly attracting domestic and international investment as well as migrants from other areas, transforming the city into one of the largest economic centers in China. GDP per capita of Zhengzhou was RMB40,398 in 2008
