Yancheng has Huanghai Sea on the east side, Nantong and Taizhou on the south, Huai’an and Yangzhou on the west and facing Lianyungang across Guanhe. Yancheng has been endowed with advantaged land, sea and wetland resources.

It has the largest land area of 17,000 square kilometers and the longest coastline of 582 kilometers in Jiangsu Province. The wetland is 455,300 hectare and 70% of the provincial wetland area. The length of the coastline accounts for 56% of that of Jiangsu Province.

Now the coast south of Sheyang embouchure is enlarging by over 10 square kilometers every year, which is called “Gold Coast”. It is the largest and the most potential land resource backup in Jiangsu Province. 

In 1983, Yancheng was authorized to be a municipality. There are two county-level city of Dongtai and Dafeng together with five counties of Jianhu, Sheyang, Funing, Binhai and Xiangshui under its jurisdiction.

The urban city has been divided into Yandu District, Tinghu District, Yancheng Economic and Technologic Development Zone and New District in Southern Town. The whole area of Yancheng is 17,000 square kilometers. The population registered by the end of the year is 816,120,000 where as the population residing here is 748,180,000 (the urban population is 1,620,000). It has the largest area and the second largest population in the Jiangsu Province.