Tbilisi's 2026 population is now estimated at 1,089,860. In 1950, the population of Tbilisi was 611,653. Tbilisi has grown by 2,840 in the last year, which represents a 0.26% 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 Tbilisi, which typically includes Tbilisi's population in addition to adjacent suburban areas.