, Shanghai had a total population of 24,281,400, including 14,504,300 (59.7%) hukou holders (registered locally). According to the 2010 national census, 89.3% of Shanghai's population live in urban areas, and 10.7% live in rural areas. Based on the population of its total administrative area, Shanghai is the second largest of the four municipalities of China, behind Chongqing, but is generally considered the largest Chinese city because the urban population of Chongqing is much smaller. According to the OECD, Shanghai's metropolitan area has an estimated population of 34 million.