The ID card starting with 500230 belongs to Fengdu County, Chongqing, because of the national administrative division code. The national administrative division code, also known as the administrative code, is the identification code of deeds units of various state organs, and consists of nine Arabic numerals, with the first and second digits representing provinces (autonomous regions, municipalities directly under the Central Government and special administrative regions). The third and fourth digits represent cities (regions, autonomous prefectures, leagues, municipalities directly under the Central Government, municipal districts and counties). The fifth and sixth representatives represent counties (municipal districts, county-level cities and banners). The seventh to ninth representatives are townships (towns).
Fengdu County in Chongqing is located in the upper reaches of the Yangtze River, in the east of Chongqing, in the center of the Three Gorges reservoir area, 0/72km away from District 9/KLOC-the main city of Chongqing, and 476km away from Yichang, Hubei.