Hai'an County

Circle Hai'an (海安 县) is a county of the prefecture-level city of Nantong in Jiangsu Province, China. It has an area of 1110 km ² and has 960,000 inhabitants. Its main town is the large village Hai'an (海安 镇).

The Neolithic Qingdun - site ( Qingdun Yizhi青墩 遗址) is on the list of monuments of the People's Republic of China ( 6-75 ) since 2006.