It covers most of the historic South District, including Yunanjie (裕南街), Jinpenling (金盆岭), Chengnanlu (城南路), Shuyuanlu (书院路) and Nandalu (南大路) 5 subdistricts, Pozijie (坡子街) and Xueyuanjie (学院街) two subdistricts of the historic West District, Shiren (石人), Xinkai (新开) and Yuchang (渔场) 3 villages of Yuhuating Township (雨花亭乡) and Datuo Township (大托乡) of the historic Suburb District.

[2][3] Muyun (暮云) and Nantuo (南托) subdistricts of Changsha County were added to Tianxin District on 14 January 2015.

[4] According to the No.2 Notice on adjustment of administrative divisions of Hunan Province in 2015 published on February 27, 2015, Tianxin has 14 subdistricts under its jurisdiction,[1] they are: According to preliminary accounting of the statistical authority, the gross domestic product of Tianxin District in 2017 was 87,674 million yuan (12,985 million US dollars), up by 9.4 percent over the previous year.

[6] Tianxin District is a place of cultural and historical attractions, including Tianxin Pavilion, Du Fu River Pavilion, Former Residence of Jia Yi, Former Residence of Li Fuchun, Site of Hunan First Normal University, and Fiery Palace.

Changsha Bamboo Slips Museum also play significant role in the tourism of Tianxin District.