San Juan Postal Codes, Ilocos Sur, Ilocos Region Philippines

The postal code for San Juan is 2731 in Ilocos Region, Ilocos Sur, Philippines. The table below lists ZIP codes and postcodes for places within San Juan.

San Juan on the Map

The map above highlights the geographic boundaries of the San Juan municipalities in Philippines. The postal codes listed on this page correspond to specific towns, villages, and post offices within this area.

What to Know About San Juan

Key Facts

San Juan is a municipality located in the province of Ilocos Sur, within the Ilocos Region of the Philippines. Positioned along the western coastline of Luzon island, San Juan sits approximately 400 kilometers north of Manila and serves as an important coastal community in this northwestern part of the country. The municipality covers a land area of approximately 64 square kilometers and has a population of around 26,000 people according to recent census data. San Juan is administratively divided into 32 barangays, which represent the smallest local government units in the Philippine system. The municipality features a diverse landscape that includes coastal areas along the South China Sea, agricultural lands, and residential zones. As a fourth-class municipality, San Juan maintains its local governance through elected officials while remaining under the provincial administration of Ilocos Sur. The area is known for its fishing industry, agricultural production, and growing tourism sector, particularly focused on its beaches and coastal attractions. Visitors and residents can access comprehensive postal code information for all of San Juan's barangays through our detailed directory services.

Neighboring Regions

* Cabugao

* Magsingal

* Sinait