Longchang County is a county of Sichuan Province, China. It is under the administration of Neijiang city. Longchang has a population of nearly 760,000, covering 794.41 square kilometer.Longchang seizes an important geographic location as the boundary of Sichuan and Chongqing, and plays as distributing center of Sichuan, Yunnan, Guizhou, Chongqing.