Nanhui District , formerly romanized as Nanhwei, was a district of Shanghai until it was merged into Pudong New Area in May 2009. It had a land area of about 809.5 km² and a 59.5-kilometer coastline. The population of Nanhui was 975,017 as of August 2006. On May 6, 2009, it was announced that the State Council of China had approved the proposal to merge Nanhui District into Pudong, which is also a district of Shanghai.