Hato Rey Sur
Hato Rey Sur is one of the 18 barrios of the municipality of San Juan, Puerto Rico. Hato Rey Sur was part of the former municipality of Rio Piedras, before it was merged with the municipality of San Juan in 1951. Following the annexation of Rio Piedras, the city of San Juan, and its surrounding area now including Rio Piedras, quadrupled its former size.Subbarrios
The barrio of Hato Rey Sur is further subdivided into four “subbarrios".