Juan Diaz's 2026 population is now estimated at 38,710. In 2000, the population of Juan Diaz was 88,165. Juan Diaz experienced a decrease of -1,985 residents over the past year, marking an annual decline of -4.88%. 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 .