Tiruchirappalli's 2021 population is now estimated at 1,181,912. In 1950, the population of Tiruchirappalli was 294,430. Tiruchirappalli has grown by 17,244 since 2015, which represents a 1.48% 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 Tiruchirappalli, which typically includes Tiruchirappalli's population in addition to adjacent suburban areas.