The Roman Catholic Archdiocese of Nanchang is an archdiocese based in the city of Nanchang in China.
Nanchang is the capital and largest city of Jiangxi Province in southeastern China. As of November 2017, the total population in Nanchang City was 5,246,600, while the urban population is 2,887,800. Located in the north-central part of the province and in the hinterland of Poyang Lake Plain, it is bounded on the west by the Jiuling Mountains, and on the east by Poyang Lake. Because of its strategic location connecting the prosperous East and South China, it has become a major railway hub in Southern China in recent decades.
Nanchang has an advantageous geographic location and convenient transportation. It is praised as the “three rivers and five lakes, and the control of the finer and better lakes. It relies on high-speed railways and aviation hubs to connect three important economic circles (Yangtze River Delta, Pearl River Delta, Inter-provincial traffic corridors in Haixi District). Nanchang is one of the country's comprehensive transportation hubs and one of the most important integrated transportation hubs in Jiangxi.
Nanchang is located in inland southeastern China, 130 km (81 mi) south of the Yangtze River and is situated on the right bank of the Gan River just below its confluence with the Jin River and some 40 km (25 mi) southwest of its discharge into Poyang Lake.