Iwaki Population 2020
Iwaki's 2020 population is now estimated at 355,785. In 1950, the population of Iwaki was 103,607. Iwaki has grown by 5,955 since 2015, which represents a 0.34% 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 Iwaki, which typically includes Iwaki's population in addition to adjacent suburban areas.