Sahiwal's 2021 population is now estimated at 444,015. In 1950, the population of Sahiwal was 49,277. Sahiwal has grown by 12,602 since 2015, which represents a 2.92% 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 Sahiwal, which typically includes Sahiwal's population in addition to adjacent suburban areas.