Hosur's 2021 population is now estimated at 528,951. In 1950, the population of Hosur was 8,540. Hosur has grown by 35,055 since 2015, which represents a 7.10% 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 Hosur, which typically includes Hosur's population in addition to adjacent suburban areas.