Santa Mesa (also as Sta. Mesa) is a place in the City of Manila, Philippines. It is surrounded by the rivers of Pasig and San Juan to its south and east side, and bounded Quezon City to the north, and the place of Sampaloc to its north and western side. Sta. Mesa formerly belongs to Sampaloc from which it was partitioned after it achieved a status of being a separate religious district, thus forming a new parish on 1911. This newly created parish is now known as the Old Sta. Mesa, which extended from V. Mapa to Sta. Mesa Boulevard (now the Magsaysay Boulevard). Sta. Mesa belongs to the 6th District of Manila and has 49 barangays (Barangays 587-636). It has a population of 98,901 as of 2007.
The name is derived from the name Santa Mesa de la Misericordia. The landowner of present-day Sta. Mesa during the Spanish colonial period offered an obra pía ("pious work"), and provided social services. Another possible derivation is from the Spanish for "Holy Mass".
The town of Santa Mesa was situated in the alluvial deposits of Pasig and San Juan Rivers. It was owned by a religious order during the Spanish Era, and in this period Santa Mesa got its name. Santa Mesa is better known for its role in the Philippine–American War, in which the area became a battlefield. The conflict started when Pvt. William W. Grayson shot a Filipino soldier. In late 2003, the National Historical Commission of the Philippines discovered that the conflict did not happen on San Juan Bridge, but at the juncture of Sociego and Silencio Streets.
The town used to be small and manageable but expanded on all directions after World War II, where the town became the hospital to treat the wounded. The town was merged with Sampaloc and the combination merged with Manila, as districts. After the creation of the legislative districts of Manila, Santa Mesa was separated from Sampaloc after falling to the jurisdiction of District 6. Although the district itself was still considered to be a part of Sampaloc. Santa Mesa is also the home of the Polytechnic University of the Philippines and the main headquarters of the National Statistics Office of the Philippines. It was also once the location of the headquarters of DZRJ-AM. Santa Mesa received critical damage when Typhoon Ondoy, international name Ketsana battered the Philippines. Half of Santa Mesa was submerged, mostly the northeastern part facing the cities of San Juan and Mandaluyong.
Santa Mesa is located in the eastern part of the City of Manila, bordering (anticlockwise): the districts of Sampaloc in the north and west, Pandacan and Santa Ana in the south across the Pasig River; and the cities of San Juan to the east, Mandaluyong to the southeast and Quezon City in the north and northwest. Some of the natural variations in topography have been evened out due to its urbanisation.
^ ab"Final Results - 2007 Census of Population". Census population of the Philippines. Philippines: National Statistics Office. April 2008. Retrieved 28 August 2009. "Total Population and Annual Population Growth Rates by Region: Population Censuses 1995, 2000, and 2007"