Calamba Population 2020
Calamba's 2020 population is now estimated at 524,577. In 1950, the population of Calamba was 41,121. Calamba has grown by 71,226 since 2015, which represents a 2.96% 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 Calamba, which typically includes Calamba's population in addition to adjacent suburban areas.