Nankai District, belonging to Tianjin, Tianjin, one of the city center. It is located in the southwestern part of Tianjin urban area, east of the Haihe River and Hebei District, respectively bordering with Heping District and Hexi District; west and south of the district is connected with Xiqing District; north of Hongqiao District adjoining, with a total area of 40.63 square kilometers (including Huayuan Street). 2022, Nankai District has a resident population of 864,300 people. As of October 2022, Nankai District has 12 streets under its jurisdiction. Its Huayuan Street and Xiangyang Road Street's West Hengdian Department is non-territorialized, and the district government is stationed at No. 390 Huanghe Road. Ming, set up guards in this area, given the name of Tianjin. 1947, set the eleventh district. 1956, named Nankai District. Because the original system of tianjin old city winding south "open puddle" area, and built the famous nankai university, and set "nankai" name. Nankai District is located in: Nankai University, Tianjin University. There are old city culture, Mazu culture, folk culture, museum culture, etc., the most representative of the Tianjin central city of the historical lineage and national cultural resources concentrated in the old city area. It is a national model city for double embracing, a national sanitary city, a national civilized city nomination city, a national pilot city for culture and tourism consumption, and a national model unit for greening. In 2022, the gross regional product of Nankai District was 72.566 billion yuan, an increase of 3.2%. Among them, the added value of the secondary industry is 9.322 billion yuan, an increase of 11.4%; the added value of the tertiary industry is 63.245 billion yuan, and the ratio of the structure of the secondary and tertiary industries is 12.8:87.2.