Ujjain's 2021 population is now estimated at 617,812. In 1950, the population of Ujjain was 125,832. Ujjain has grown by 10,757 since 2015, which represents a 1.77% 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 Ujjain, which typically includes Ujjain's population in addition to adjacent suburban areas.