,In rare occasion it is pronunced as, with a glottal stop after /ɐ/ in Filipino/Tagalog languages. officially known as the City of Valenzuela (ISO: PH-00; PSGC: 137504000) or simply Valenzuela City is the 101st largest city of the Philippines and one of the sixteen cities that along with the smaller municipality of Pateros comprise the region of Metro Manila, located about 14 km (7.9 miles) north of Manila. Valenzuela is categorized by virtue of Republic Act Nos. 7160 and 8526 as a highly urbanized, first-class city based on income classification and number of population. A chartered city located on the island of Luzon, it is bordered by Meycauayan (Bulacan) in the north, Quezon City and northern Caloocan to the east; by Obando (Bulacan) to the west; by Malabon, southern Caloocan and Tullahan River to the south. With a land mass of 44.59 km2 and a population of almost 600,000 in August 2010, Valenzuela is the 10th most populous city in the Philippines. Valenzuela's population is composed of 72% Tagalog people followed by 5% Bicolanos. Small percentage of foreign nationals reside in the city.Valenzuela was named after Pío Valenzuela, a doctor and a member of Katipunan. The town preceding Valenzuela that was originally called Polo was formed in 1621 due to religious separation movements from parishes of Meycauayan (Catanghalan). Polo has been occupied twice by foreign armies other than colonial powers Spain and United States: first during the Seven Years' War by the British and by the Japanese during the Second World War. In 1960, President Diosdado Macapagal ordered the creation of the municipality of Valenzuela carved from few territories of Polo and is independent from the provincial government of Bulacan. However in 1963, another law was issued ordering the reversal of the previous edict and reunifying the towns of Polo and Valenzuela under the single name of Valenzuela. In 1975, Valenzuela was named as an independent municipality from the government of Bulacan and incorporated under the administration of Metropolitan Manila Authority. On 14 February 1998, President Fidel V. Ramos signed Republic Act 8625, or the Valenzuela City Charter, which elevated the status of Valenzuela as a highly urbanized, chartered city.

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