Quetta's 2021 population is now estimated at 1,129,361. In 1950, the population of Quetta was 82,761. Quetta has grown by 29,815 since 2015, which represents a 2.71% 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 Quetta, which typically includes Quetta's population in addition to adjacent suburban areas.