Lop Buri's 2021 population is now estimated at 458,682. In 1950, the population of Lop Buri was 19,475. Lop Buri has grown by 21,377 since 2015, which represents a 4.89% 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 Lop Buri, which typically includes Lop Buri's population in addition to adjacent suburban areas.