Ryazan's 2025 population is now estimated at 540,326. In 1950, the population of Ryazan was 145,881. Ryazan has grown by 140 in the last year, which represents a 0.03% 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 Ryazan, which typically includes Ryazan's population in addition to adjacent suburban areas.