La Plata's 2021 population is now estimated at 894,159. In 1950, the population of La Plata was 299,505. La Plata has grown by 10,105 since 2015, which represents a 1.14% 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 La Plata, which typically includes La Plata's population in addition to adjacent suburban areas.