Ilocos Sur Postal Codes, Ilocos Region Philippines

Postal codes for Ilocos Sur range from 2701 to 2732 in Ilocos Region, Philippines. To find exact ZIP codes and postcodes within Ilocos Sur, choose from the municipalities listed below.

Municipalities in Ilocos Sur

Ilocos Sur on the Map

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

What to Know About Ilocos Sur

Key Facts

Ilocos Sur is a province located in the northwestern part of the Ilocos Region in the Philippines, situated along the western coast of Luzon island. This first-class province covers a land area of approximately 2,596 square kilometers and has a population of around 706,000 people according to recent census data. Ilocos Sur is administratively divided into 32 municipalities and 2 component cities - Vigan City, the provincial capital and a UNESCO World Heritage Site known for its well-preserved Spanish colonial architecture, and Candon City. The province features a diverse landscape that includes coastal areas along the South China Sea, fertile agricultural valleys, and mountainous terrain in its eastern portions. Its strategic location has made it an important historical and cultural center, with Vigan serving as one of the few remaining Hispanic towns in the Philippines that retains its original grid street pattern and historic buildings. For those seeking detailed location information, postal code data is available for all municipalities and cities within Ilocos Sur to facilitate accurate addressing and navigation throughout the province.

Neighboring Regions

* Ilocos Norte

* Abra

* Mountain Province

* Benguet

* La Union