Dagang District is located in the southeast of Tianjin City, bordering Bohai Bay and Tanggu District to the east; Huanghua City, Hebei Province to the south; Jinghai County to the west; and Jinnan and Xiqing Districts to the north. The terrain is flat, with an average altitude of 3 meters. The eastern part is mostly tidal flats, the central part has the Dagang Reservoir with an area of ??220,000 acres, and the west and southwest are fertile farmland. The region is about 48 kilometers long from north to south and 36 kilometers wide from east to west, with a total area of ??1,113.83 square kilometers and a total population of 320,000, including 210,000 non-agricultural people, accounting for 67% of the total population. There are nearly 20 ethnic minorities in the territory, including Hui, Manchu, Mongolian, and Korean. The district has jurisdiction over 4 townships, 3 organized towns, 5 sub-district offices, and 60 residents' committees.

Dagang District is a coastal urban area with a mixture of urban and rural areas, a combination of industry, agriculture, and fishery, with oil exploration and petrochemicals as the main body, and a relatively complete range of industrial categories. It is an important part of Tianjin Binhai New Area. There are a number of large state-owned modern enterprises stationed in the zone, including Dagang Oilfield Group Co., Ltd., Tianjin Petrochemical Company, Tianjin United Chemical Co., Ltd., Sinopec Fourth Construction Company, Dagang Power Plant, China Construction Sixth Engineering Bureau First Construction Company, etc. ; There are three state-owned farms in Banqiao, Beidagang and Dasu Village. The district has more than 600 township industrial enterprises, nearly 800 urban collective enterprises, more than 700 private enterprises, as well as state-owned cooperatives, collective commercial enterprises and individual industrial and commercial households in both urban and rural areas. Regional economic and social development has a good foundation.