Barrio Sur's 2026 population is now estimated at 5,563. In 2000, the population of Barrio Sur was 17,787. Barrio Sur experienced a decrease of -285 residents over the past year, marking an annual decline of -4.87%. These population values and projections come from Panama census 2000 nomenclature places, Panama census 2010 nomenclature places, Panama census 2023 Cuadro 3 place population and World Population Review Internal Projections .