Rostov-On-Don's 2021 population is now estimated at 1,137,147. In 1950, the population of Rostov-On-Don was 484,402. Rostov-On-Don has grown by 946 since 2015, which represents a 0.08% 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 Rostov-On-Don, which typically includes Rostov-On-Don's population in addition to adjacent suburban areas.