San Ildefonso Postal Codes, Ilocos Sur, Ilocos Region Philippines

The postal code for San Ildefonso is 2728 in Ilocos Region, Ilocos Sur, Philippines. The table below lists ZIP codes and postcodes for places within San Ildefonso.

San Ildefonso on the Map

The map above highlights the geographic boundaries of the San Ildefonso 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 Ildefonso

Key Facts

San Ildefonso is a municipality located in the province of Ilocos Sur, within the Ilocos Region of the Philippines. Situated in the northwestern part of Luzon island, this coastal municipality lies along the South China Sea and occupies a strategic position in the northern section of Ilocos Sur. With a land area of approximately 11.35 square kilometers, San Ildefonso is one of the smaller municipalities in the province but maintains significant local importance. According to recent census data, the municipality has a population of around 8,000 residents who primarily engage in agriculture, fishing, and local commerce. The municipality is administratively divided into 15 barangays, which serve as the fundamental political units governing local affairs and community development. San Ildefonso features a typical tropical climate with distinct wet and dry seasons, supporting the cultivation of rice, corn, and various vegetables that form the backbone of its agricultural economy. The municipality's coastal location also provides opportunities for fishing and potential tourism development. For those seeking detailed location information, comprehensive postal code data is available for all of San Ildefonso's barangays to facilitate accurate addressing and mail delivery throughout the municipality.

Neighboring Regions

* Bantay

* Santa

* Magsingal

* Santo Domingo