Phnom Penh's 2020 population is now estimated at 2,077,757. In 1950, the population of Phnom Penh was 364,000. Phnom Penh has grown by 299,146 since 2015, which represents a 3.16% 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 Phnom Penh, which typically includes Phnom Penh's population in addition to adjacent suburban areas.