Sagar's 2025 population is now estimated at 481,894. In 1950, the population of Sagar was 78,877. Sagar has grown by 9,993 in the last year, which represents a 2.12% 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 Sagar, which typically includes Sagar's population in addition to adjacent suburban areas.