Diffun Postal Codes: 3401 | Quirino, Cagayan Valley
The Postal Codes (ZIP Codes) for Diffun is 3401 in Quirino, Cagayan Valley, Quirino, Philippines. The table below lists Postal Codes and postcodes for places within Diffun.
Postal Codes for Places in Diffun
Showing 33 places in Diffun. Last verified with official records on April 20, 2026.
| Aklan Village | |
| Andres Bonifacio | |
| Aurora East | |
| Aurora West | |
| Baguio Village | |
| Balagbag | |
| Bannawag | |
| Cajel | |
| Campamento | |
| Diego Silang | |
| Don Faustino Pagaduan | |
| Don Mariano Perez, Sr. | |
| Doña Imelda | |
| Dumanisi | |
| Gabriela Silang | |
| Gregorio Pimentel | |
| Gulac | |
| Guribang | |
| Ifugao Village | |
| Isidro Paredes | |
| Liwayway | |
| Luttuad | |
| Magsaysay | |
| Makate | |
| Maria Clara | |
| Rafael Palma | |
| Ricarte Norte | |
| Ricarte Sur | |
| Rizal | |
| San Antonio | |
| San Isidro | |
| San Pascual | |
| Villa Pascua |
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Sample Address Format for Diffun
[Sender Street Address]
[City, ZIP]
[Country]
Street Address / PO Box
Diffun, Quirino, Cagayan Valley, 3401
PHILIPPINES
Diffun on the Map
The map above highlights the geographic boundaries of the Diffun municipalities in Philippines.
Diffun Quick Facts
| Country | Philippines (PH) |
|---|---|
| Administrative Path | Philippines → Cagayan Valley → Quirino |
| Postal Code | 3401 |
| Region | Cagayan Valley |
| Provinces | Quirino |
| ISO Codes | PH / PHL / 608 |
| Top-level domain (ccTLD) | .ph |
| Coordinates | 16.593529, 121.502425 |
| Places | 33 |
What to Know About Diffun
Key Facts
Diffun is a municipality located in the province of Quirino within the Cagayan Valley region of the Philippines. Situated in the central part of Quirino province, Diffun serves as an important commercial and transportation hub for the surrounding areas. The municipality covers a total land area of approximately 320 square kilometers and has a population of around 56,000 people according to recent census data. Diffun is administratively divided into 33 barangays, which represent the smallest local government units in the Philippine system. The town's economy is primarily agricultural, with rice, corn, and various fruit crops being the main agricultural products cultivated in the fertile plains and surrounding hills. Diffun's strategic location along major transportation routes makes it a vital connection point between Quirino province and neighboring regions. For those seeking detailed postal code information and administrative data for Diffun's barangays and surrounding areas, comprehensive resources are available to assist with location-based services and documentation needs.
Neighboring Regions
- Maddela
- Saguday
- Cabarroguis
- Nagtipunan
- Aritao