Monterrey's 2021 population is now estimated at 4,955,506. In 1950, the population of Monterrey was 396,104. Monterrey has grown by 81,411 since 2015, which represents a 1.67% 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 Monterrey, which typically includes Monterrey's population in addition to adjacent suburban areas.