San Pedro is a part of Los Angeles located in the Harbor Area. It lies immediately east of the Palos Verdes Peninsula in the South Bay area of Los Angeles County.
The city also has the highest population density in the province of Laguna and in the whole Calabarzon region, having 14,000 people/km2. San Pedro City eyed as 18th member of Metro Manila. Former Metro Manila Development Authority (MMDA) Chairman Francis Tolentino is pushing for the inclusion of San Pedro City in the National Capital Region, and eventually become its 18th member city. Tolentino said that in the first meeting of the MMDA Council of mayors in January 2015, he will push for the inclusion of the city to the MMDA. Senator Aquilino "Koko" Pimentel III is seeking the separation of the City of San Pedro from the first legislative district of Laguna province to constitute a lone congressional district. In 2015, Pimentel filed Senate Bill No. 3029 for the creation of the San Pedro City as a separate district to commence in the next national and local elections. San Pedro de Tunasán became a town on January 18, 1725, when King Charles II of Spain decreed that the town formerly known as "Tabuko" be a separate town from "Kabullaw" (now known as the city of Cabuyao). By virtue of the last will of Philip V of Spain, Rodriguez de Figueroa or "Don Esteban", a group of Augustinian Fathers gained the ownership of the Tunasán Estate.