Sendai's 2021 population is now estimated at 2,334,959. In 1950, the population of Sendai was 537,571. Sendai has grown by 7,542 since 2015, which represents a 0.32% 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 Sendai, which typically includes Sendai's population in addition to adjacent suburban areas.