Dongyang's 2025 population is now estimated at 627,458. In 1950, the population of Dongyang was 3,135. Dongyang has grown by 11,562 in the last year, which represents a 1.88% 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 Dongyang, which typically includes Dongyang's population in addition to adjacent suburban areas.