ZIP codes in the Philippines

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In the Philippines, a ZIP code is used by the Philippine Postal Corporation (PhlPost) to simplify the distribution of mail.^[1][2] While its function similar with the ZIP Codes used in the United States, its form and usage are quite different. Its use is not mandatory but highly recommended by the PhlPost. A ZIP code is composed of a four-digit number representing a locality. Usually, more than one code is issued for areas within Metro Manila, and a single code for each municipality and each city in provinces, with exceptions such as:^[1]

• Davao City with eleven ZIP codes (8000, 8016 to 8026);
• Antipolo with six ZIP codes (1870 to 1875);
• Calamba (Laguna), Cavite City, Dasmariñas, Mabalacat, Mariveles, and the Island Garden City of Samal with three ZIP codes each;^[3] and
• Angeles City, Bacoor, Baguio, Bamban, Biñan, Capas, Floridablanca, General Tinio, Labo, Laur, Limay, Lipa, Los Baños, Lubao, Lucena, Majayjay, Muñoz, Palayan, Porac, Puerto Princesa, Sagay, San Jose del Monte, San Rafael (Bulacan), Santa Rosa (Laguna), Santa Rosa (Nueva Ecija), Silay, Sorsogon City, and Tagbina with two ZIP codes each.

Additionally, locations such as Basilio Fernando Air Base, Clark Special Economic Zone, Central Luzon State University, Cesar Basa Air Base, Francisco Bangoy International Airport, Laguna Technopark, Ninoy Aquino International Airport (NAIA), Manila Domestic Airport (NAIA Terminals 2 & 4), National Center for Mental Health, Philippine Military Academy, University of the Philippines (Diliman & Manila campuses), University of the Philippines Los Baños (College Los Baños), University of Mindanao, and Villamor Air Base have one code each.^[1]