Which district in Pudong, Shanghai is the most prosperous?

Of course, it belongs to Lujiazui financial district.

Lujiazui Financial and Trade Zone is one of the major financial centers in China and Shanghai, located on the Huangpu River in Pudong New Area, facing the Bund. The total area of the whole financial and trade zone is 28 square kilometers, of which the planned development area is 6.8 square kilometers, and about 100 buildings have been built. 1990, the State Council, China announced the development of Pudong and the establishment of the first national financial development zone in Lujiazui. Foreign financial institutions engaged in RMB business must open offices in Lujiazui Financial and Trade Zone, so Lujiazui is the headquarters of many foreign banks. At present, many foreign financial institutions have set up offices in Lujiazui, including HSBC, Citibank, Standard Chartered Bank and Bank of East Asia.