San Antonio is a barangay of the philippine municipality San Pedro in the province Laguna in CALABARZON which is part of the Luzon group of islands. The municipality San Pedro with a population of about 281,808 and its 20 barangays belongs to the urban areas in the Philippines. San Antonio had 47,825 residents by the end of 2007.
San Antonio belongs to the barangays of Municipality San Pedro which are in the outlying area.
Other barangays of San Pedro are:
Bagong Silang, Calendola, Cuyab, Estrella, G.S.I.S., Landayan, Langgam, Laram, Magsaysay, Narra, Nueva, Poblacion, Riverside, Sampaguita Village, San Roque, San Vicente, Santo Niņo, United Bayanihan, United Better Living