Wen'an County, belongs to Langfang City, Hebei Province. It is located in the south of Langfang City, northeast of the Jizhong Plain, east of Tianjin Jinghai District, west of Renqiu City, northwest of Xiong County across the Daqing River, south of Renqiu City, Dacheng County, southeast of the border Dacheng County, north of the border Bazhou City, with a total area of 1037 square kilometers. As of June 2023, Wen'an County has 12 towns and 1 township under its jurisdiction. As of 00:00 on November 1, 2020, the resident population of Wen'an County was 544,778 people. In the fifth year of Gaozu of the Han Dynasty (202 BC), Wen'an County was established, taking the name of the county for its reverence for literature and rituals, and for its ability to rule the country and secure the state. County area of 4/5 in Wen'an puddle, Wen'an puddle is one of the eight puddle precipitation in Hebei Province, for the Haihe River Basin flooded area of the widest, the largest volume of stagnant flood storage area, bear the upstream of five cities and fourteen counties of the leachate stagnation task of 5100 square kilometers in the Daqing River system and even the Haihe River Basin flood control system plays an important role. In 2022, Wen'an County's gross regional product growth of 3.8%, the city's first growth rate; general public budget revenue of 1.829 billion yuan, an increase of 5.1%, the city's second growth rate.