Ilocos Sur Zip Codes: Philippines

Area Name ZIP Code
Alilem 2716
Binayoyo 2708
Bantay 2727
Burgos 2724
Cabugao 2732
Candon 2710
Caoayan 2702
Cervantes 2718
Galimuyod 2709
Gregorio del Pilar 2720
Lidilda 2723
Magsingal 2730
Nagbukel 2725
Narvacan 2704
Quirino 2721
Salsedo 2711
San Emilio 2722
San Esteban 2706
San Ildefonso 2728
San Juan 2731
San Vicente 2726
Santa 2703
Santa Catalina 2701
Santa Cruz 2713
Santa Lucia 2712
Santa Maria 2705
Santiago 2707
Santo Domingo 2729
Sicay 2719
Sinait 2733
Sugpon 2717
Suyo 2715
Tagudin 2714
Vigan 2700

There is a small line of difference between the zip code and the postal code. However, both are used to direct and filter mails and to determine the time and cost of mail delivery. In addition, these codes are also useful for collecting demographic information. Here we have given you all Ilocos Sur postal code - Ilocos Sur zip code - Ilocos Sur postcode that you can use for mailing in Ilocos Sur.

Postal Code:

Postal code can be defined as a coding system used by many countries around the world to facilitate automatic mail filtering. It is a series of numbers, or combinations of numbers and letters, that help mail departments and courier companies identify the exact location and location, where the email should be delivered or dropped.

The postal code indicates the width of the shipping area, which means that there is a single postal code, for different delivery areas, coming under the same area. For this purpose, there is a local distribution of postal code and therefore connected to a specific local area, however, the composition and functionality vary from one nation to another.

Therefore, postal codes can include country, region, municipality, roads, military, etc.

ZIP Code:

The name Zip Code is an acronym for the Zone Improvement Plan, launched by the United States Postal Services (USPS) in 1963.

The Zip Code is widely used to identify the exact place where parcels, packages and letters should be delivered, by dividing the regions into simple groups of locations, which speeds up the mail delivery process as mail sorting becomes easier. These geographical groups may contain various addresses, businesses, geographic features, etc.

Previously, it was a five-digit number, changed to a 9-digit number, to better identify the location, where the mail should be delivered.

Differences Between Zip Code and Postal Code:

The differences between zip code and postal code are discussed in the following points:

  1. Zip Code means a postal code, which is used in several countries with a postal address to specify a mailing address. On the other hand, the postal code indicates the code used in the postal address, which helps to filter emails for the purpose of delivering them to their destination.
  2. The Zip Code was introduced by the United States Postal Services (USPS) in 1963, and in 1959 the postal code was introduced.
  3. The Zip Code is widely used in the United States and the Philippines. In contrast, the Postal Code is used in some countries.
  4. The Zip code aims to separate regions to facilitate mail filtering, identifying the area where the email is directed. In contrast, the Postal Code is used for the purpose of identifying and identifying a location, planning a route, and collecting personal information.
  5. The zip code contains only numbers, and the postal code contains numbers or combinations of numbers and letters, and sometimes punctuation marks are also encoded with numbers and letters.


Many countries around the world use codes either postal code or zip code or any other similar code, by whatever name it is called, at the postal address. This often makes moving and delivery of mail easier, faster and more efficient, which not only saves the delivery time and efforts and prevents confusion, when two locations are known by the same name, city or town.