Chiclayo's 2021 population is now estimated at 645,366. In 1950, the population of Chiclayo was 53,580. Chiclayo has grown by 8,111 since 2015, which represents a 1.27% 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 Chiclayo, which typically includes Chiclayo's population in addition to adjacent suburban areas.