Dongguan is a prefecture-level city in central Guangdong province, China. An important industrial city located in the Pearl River Delta, Dongguan borders the provincial capital of Guangzhou to the north, Huizhou to the northeast, Shenzhen to the south, and the Pearl River to the west. It is part of the Pearl River Delta megacity with more than 44.78 million inhabitants at the 2010 census spread over nine municipalities (including Macao) across an area of 17,573 square kilometres.