Taicang's 2021 population is now estimated at 679,623. In 1950, the population of Taicang was 3,294. Taicang has grown by 25,182 since 2015, which represents a 3.85% 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 Taicang, which typically includes Taicang's population in addition to adjacent suburban areas.