This dataset is composed of boundary files covering the administrative regions of Tianjin. Five counties and 13 districts are represented by 12 polygons, in which the Heping Qu, Hedong Qu, Dexi Qu, Nankai Qu, Hebei Qu, Hongqiao Qu and Dagang Qu are combined as one polygon.

The dataset includes information on the geographical locations, areas, codes for administrative divisions, and names for each county and district.