Geographical location: Jizhou District is located in the northernmost part of Tianjin, bordering zunhua city and yutian county in the east, sanhe city in Hebei Province in the west, Baodi District in Tianjin and Xinglong County in Hebei Province in the south, and Pinggu District in Beijing in the north. It is 30 45' ~ 4015' north latitude and17 05' ~17 47' east longitude, with a total area of 1590.
Topography: Jizhou District is the transition zone between Yanshan Mountains and North China Plain, which is high in the north and low in the south. It starts from the Great Wall in the north and reaches the Jiyun Canal in the south, and gradually descends, showing a stepped distribution. The highest point in the northern margin is Jiushanding, with an altitude of 1078.5m, and the lowest point in the south is Macaowa, with an altitude of1.8m. The height difference between north and south1076.7m. The mountainous area is 840.5 square kilometers, the plain area is 504.72 square kilometers, and the depression area is 245.2 square kilometers.