La Union Zip Code

Located in the Ilocos Region of Northwestern Luzon, La Union is a province of the Philippines with San Fernando City as its capital. The province is renowned for its stunning beaches, attracting both local and foreign surfers and water sports enthusiasts. Tourists can explore a variety of attractions including the Cathedral of Saint William the Hermit, the La Union Science Centrum & Museum, the Bacsil Ridge Monument, the historic Pindangan Ruins, the Ma-Cho Temple, and the scenic Seven Hills.

La Union Zip Code | La Union Postal Code

Location ZIP Code Phone Area Code
Agoo 2504 72
Aringay 2503 72
Bacnotan 2515 72
Bagulin 2512 72
Balaoan 2517 72
Bangar 2519 72
Bauang 2501 72
Burgos 2510 72
Caba 2502 72
Damortis 2507 72
Luna 2518 72
Naguillan 2511 72
Pugo 2508 72
Rosario 2506 72
San Fernando 2500 72
San Gabriel 2513 72
San Juan 2514 72
Santol 2516 72
Santo Tomas 2505 72
Sudepen 2520 72
Tubao 2509 72
Zip Code Philippines

Navigating La Union’s Municipalities and Cities

The list details key information for each area in La Union:

  1. Location Name: Specifies different municipalities and cities within La Union.
  2. ZIP Code: Each area has a designated ZIP code for postal and delivery services.
  3. Phone Area Code: All locations in La Union share the area code “72”, used for landline telephone communications.

Key Locations in La Union

  • San Fernando (ZIP: 2500): The provincial capital, known for its historical sites and as a major economic and governmental center.
  • Bauang (ZIP: 2501): Famous for its grape farms and beaches, a popular tourist destination.
  • Agoo (ZIP: 2504): A town with rich historical and religious significance, known for its beautiful basilica.
  • San Juan (ZIP: 2514): The surfing capital of the Northern Philippines, attracting surfers from around the world.
  • Rosario (ZIP: 2506): Known as the gateway to the North, with a mix of urban and agricultural landscapes.
  • Balaoan (ZIP: 2517) and Bangar (ZIP: 2519): These areas showcase the province’s rural beauty and local culture.

Importance of ZIP and Area Codes

  • ZIP Codes (2500 to 2520): These codes ensure that mail and packages are delivered efficiently to the correct locations within La Union.
  • Area Code (72): This uniform area code for La Union simplifies landline communication across the province.


La Union, with its mix of coastal charm, historical landmarks, and vibrant local culture, offers a diverse experience. Whether you’re sending a letter, making a phone call, surfing in San Juan, or exploring historical churches, this guide is invaluable for navigating the province’s towns and cities. Understanding these ZIP codes and area codes is not just about practicality; it’s a key to experiencing the rich and diverse life in La Union.