Donghai County is under the administration of Lianyungang, Jiangsu province, China. It borders the prefecture-level cities of Linyi (Shandong) to the north and Xuzhou to the west. The county has 300 million tons of quartz and 300,000 tons of rock crystal reserves, which is the highest in China, so it is nicknamed "the county of rock crystal".

Administrative divisions

At present, Donghai County has 2 subdistricts, 11 towns and 8 townships.

Climate