The Philippine Postal Corporation (PhlPost) uses ZIP codes to simplify the distribution of mail. 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 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) . The use of ZIP codes is not mandatory but highly recommended by the PhlPost.

To find your specific postal code, you can visit the PhlPost website or use an online search engine to look up the ZIP code for your locality.