Calabarzon Postal Codes: 1850 to 4342

Key Facts

Calabarzon, officially designated as Region IV-A, is one of the 17 administrative regions of the Philippines, located in the southern part of Luzon island. This region is strategically positioned immediately south and southeast of Metro Manila, serving as a crucial economic corridor and residential expansion area for the National Capital Region. Calabarzon covers a total land area of approximately 16,873 square kilometers and has a population of around 16.2 million people, making it the second most populous region in the country after Metro Manila. The region's name is an acronym derived from its five component provinces: Cavite, Laguna, Batangas, Rizal, and Quezon, each with its own distinct character and economic contributions. Calabarzon is divided into these five provinces, which are further subdivided into 122 municipalities and 20 cities, including major urban centers like Antipolo, Calamba, and Lipa. The region features diverse geography ranging from coastal areas along the South China Sea and Tayabas Bay to mountainous terrain including parts of the Sierra Madre mountain range. As an important economic hub, Calabarzon hosts numerous industrial estates and is a major center for manufacturing, agriculture, and tourism. For those seeking to access postal code information for any of Calabarzon's municipalities, cities, or barangays, comprehensive directory services are available to facilitate mail delivery and location-based services throughout the region.

Neighboring Regions

• Metro Manila
• Central Luzon
• Mimaropa
• Bicol Region