Tancheng County is subordinate to Linyi City, Shandong Province, located in the southernmost part of Shandong Province, at the junction of Lu-Su, south of Xuzhou City, Jiangsu Province, Pizhou City, Xinyi City, Lianyungang City, Donghai County, the northern half of Linyi City, Linyi City, Linshu County, Hedong District, Luozhuang District, Luling County borders. It is the southern gate of Shandong Province, Qilu land and the Jianghuai region with the important traffic. The establishment of Tancheng began in the summer and Shang Dynasty Yan State, evolved into Tancheng State in the Spring and Autumn Period, set up Tancheng County in the Qin Dynasty, renamed Donghai County in the two Han Dynasty, and renamed Tancheng County in the Tang Dynasty. Tancheng has long been the county seat of Tancheng County, Donghai County and Xuzhou Assassins Department, is the birthplace of ancient Xu culture. Tancheng is one of the country's 100 grain-producing counties, known as the "southern Lu granary", was named the national advanced county of grain production, the national advanced county of plains greening, the national advanced county of culture, China's excellent ecotourism county, China's green county, the national science and technology progress in advanced counties, the national garden county, the hometown of China's ginkgo, the hometown of Chinese wolfberry willow and other titles. Title. In 2020, Tancheng County has 16 townships (streets, development zones, scenic spots), 114 rural communities, 11 urban communities, 616 villages, with a total area of 1,195 square kilometers. According to the seventh census data, as of 00:00 on November 1, 2020, the resident population of Tancheng County was 885,156 people. In 2020, the annual GDP of Tancheng County is 32.094 billion yuan, an increase of 3.1%.