The postcode of Tianning District, Changzhou City is 2 13 10 1. Tianning District governs 6 streets, 1 town: Diaozhuang Street, Qinglong Street, Chashan Street, Hongmei Street, Tianning Street, Lanling Street, Lu Zheng Town, 60 villages and 74 communities. The District People's Government is located in Qinglong Street, and its office address is No.256, Zhu Lin North Road.

Tianning District is located in the northeast of Changzhou City, bordering Jiangyin City in Wuxi City in the east and northeast, Wujin District in the south, Zhonglou District in the west and Xinbei District in the northwest, with a total area of 154.84 square kilometers. Tianning District is located in the south bank of the lower reaches of the Yangtze River and belongs to the water network plain of Taihu Lake Basin. The territory is flat, slightly inclined from northwest to southeast, with an altitude of 3 to 6 meters. The surface is mainly composed of silt with smaller particle size and lacustrine deposit, mostly alluvial cohesive soil.

Tianning District belongs to the north subtropical monsoon region, with warm climate, abundant rainfall and sunshine. Annual average temperature 17.2℃, annual sunshine hours16510.7 hours, annual precipitation1kloc-0/23.5 mm. ..

The Beijing-Hangzhou Grand Canal in Tianning District passes through the territory. Zaogang River is directly connected with the Yangtze River, Cailing Port is connected with Taihu Lake, and Beitang River is connected with the Grand Canal and the Yangtze River. There are Cailing Port, Datong River, Xihe River, Hengtang River, Ninghe River, Shenpu River, Huangtiandang River, Qinglong Port, Tangding Port, Lupu Port, Tongjiabang, Caotangbang, Huangjiabang, Longxingbang and Huangjiabang.