Zhangjiagang (张家港; Zhāngjiāgǎng) is a modern industrial city in Jiangsu province.
Zhangjiagang was a small rural town until the economic reforms of the mid 1980's brought industry and business to the area. Since, it has developed into prosperous city famous for its large parks, clean and well maintained streets and friendly inhabitants. The city has a population of over one million. The city centre is very modern with shops selling import goods, and western restaurant chains. The countryside is less developed, and offers a break from the fast pace of downtown.