Mandaluyong, municipality in the northern Philippines, on the island of Luzon, in Rizal Province. Part of the Manila metropolitan area and the National Capital Region, Mandaluyong is located about 6 km (about 4 mi) east of Manila's downtown. It is bordered on the west and south by the Pasig River, across from which lie Manila and the suburb Makati. East of Mandaluyong are Pasig and Quezon City, and to the north is San Juan del Monte. Mandaluyong is an important industrial and residential area of Manila. It is located on metropolitan Manila's semicircular outer beltway (locally referred to by its acronym, EDSA). From the late 1940s until the 1970s, the area's population grew on average about 10 percent per year. Mandaluyong's growth slowed in the 1980s as newer areas farther away from Manila began to develop rapidly. By the 1980s almost all of Mandaluyong's land was developed; between 1980 and 1990 its population grew by only 21 percent (compared to 34 percent for the entire National Capital Region and 26 percent for the nation). Population (1999 estimate) 293,354.
