Ajmer's 2021 population is now estimated at 621,505. In 1950, the population of Ajmer was 192,884. Ajmer has grown by 7,888 since 2015, which represents a 1.29% 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 Ajmer, which typically includes Ajmer's population in addition to adjacent suburban areas.