Dezhou City, referred to as "De", the ancient name of Ander, Shandong Province, prefecture-level city, located in northwestern Shandong Province, the lower reaches of the Yellow River alluvial plain, north of Cangzhou City, Hebei Province, south of Jinan City, Liaocheng City, west of Hengshui City, Hebei Province, east of Binzhou City, the topography of the southwest high, low in the northeast, the monsoon influence is significant, four seasons, the city has a total area of 10,356 square kilometers. As of October 2022, the city has 2 districts and 7 counties under its jurisdiction, and is in charge of 2 county-level cities. As of the end of 2022, the city had a resident population of 5,574,900. The name "De" of Dezhou originates from "De Shui" (德水). De Shui is an alias of the ancient Yellow River. In the third year of Kaihuang in Sui Dynasty (583), the name was changed from "Ander" to "Dezhou". Dezhou is the transportation hub and economic center of China's Jili-Lu junction area, an important city of industry and trade in northwestern Shandong Province, and a new energy industry base in Shandong Province, which is located at the intersection of the Beijing-Shanghai and De Shi Railways, with the Beijing-Shanghai (Fukoku) Expressway, Qingdao-Yinchuan Expressway, Dezhou-Shi (Jiazhuang) Expressway, and the Beijing-Hangzhou Canal passing through the area, and the transit of National Highways 104, 308, and 205. In September 2016, Dezhou was selected as one of the "Top 100 Prefecture-level Cities in China for Livelihood Development". In September 2016, Dezhou was selected as one of the "Top 100 Prefecture-level Cities in China for Livelihood Development".Dezhou has been listed as one of the first batch of national comprehensive pilot areas for new-type urbanization.In 2018, Dezhou was reconfirmed as a national sanitary city (district).In October 2020, Dezhou was named a national model city (county) for double-protection. In 2022, the gross regional product of Dezhou was 363.31 billion yuan, an increase of 4.4% over the previous year.