Huancayo's 2025 population is now estimated at 410,265. In 1950, the population of Huancayo was 40,605. Huancayo has grown by 5,017 in the last year, which represents a 1.24% 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 Huancayo, which typically includes Huancayo's population in addition to adjacent suburban areas.