In the Philippines, a ZIP code is used by the Philippine Postal Corporation (PhlPost) to simplify the distribution of mail. A ZIP code is composed of a four-digit number representing a locality. While the use of ZIP codes is not mandatory, it is highly recommended by the PhlPost. Usually, more than one code is issued for areas within Metro Manila, and a single code for each municipality and city in provincial areas, with some rare exceptions such as Dasmariñas in Cavite, which has three ZIP codes (4114, 4115, and 4126), Los Baños in Laguna, which has two ZIP codes (4030 and 4031 for the University of the Philippines Los Baños), and Angeles City, which has two ZIP codes (2009 and 2024 for Barangay Balibago). To find the specific ZIP code for a particular location in the Philippines, you can use online resources such as the Philippine Postal Corporation website, GeoNames, or Europacco.