Jianyang's 2023 population is now estimated at 527,254. In 1950, the population of Jianyang was 3,132. Jianyang has grown by 12,884 in the last year, which represents a 2.5% annual change. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Jianyang, which typically includes Jianyang's population in addition to adjacent suburban areas.