Quetta's 2026 population is now estimated at 1,818,905. In 1972, the population of Quetta was 158,026. Quetta has grown by 88,709 in the last year, which represents a 5.13% annual change. These population values and projections come from Pakistan cities census series 1972-1998 via CityPopulation official attribution, Pakistan cities census 2017 via CityPopulation official attribution, Pakistan cities census 2023 via CityPopulation official attribution and World Population Review Internal Projections .