Cartagena's 2021 population is now estimated at 1,070,692. In 1950, the population of Cartagena was 106,547. Cartagena has grown by 8,070 since 2015, which represents a 0.76% 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 Cartagena, which typically includes Cartagena's population in addition to adjacent suburban areas.