Barangays under ZIP 3401

Diffun is a 1st-class Municipality in the province of Quirino, Cagayan Valley (Region II), Philippines. Based on 2024 PSA data, it has a population of 58,254 residents.

Barangays under ZIP 3401

33 total

Aklan Village 3401	Andres Bonifacio 3401	Aurora East 3401
Aurora West 3401	Baguio Village 3401	Balagbag 3401
Bannawag 3401	Cajel 3401	Campamento 3401
Diego Silang 3401	Do├▒a Imelda 3401	Don Faustino Pagaduan 3401
Don Mariano Perez, Sr. 3401	Dumanisi 3401	Gabriela Silang 3401
Gregorio Pimentel 3401	Gulac 3401	Guribang 3401
Ifugao Village 3401	Isidro Paredes 3401	Liwayway 3401
Luttuad 3401	Magsaysay 3401	Makate 3401
Maria Clara 3401	Rafael Palma 3401	Ricarte Norte 3401
Ricarte Sur 3401	Rizal 3401	San Antonio 3401
San Isidro 3401	San Pascual 3401	Villa Pascua 3401

Barangays under ZIP 3401

Aglipay Municipality

3403

Cabarroguis Municipality

3400

Maddela Municipality

3404

Nagtipunan Municipality

3405

Saguday Municipality

3402

About ZIP Code 3401

ZIP code 3401 is the Philippine postal code assigned to Diffun, a municipality in the province of Quirino, Cagayan Valley, . Based on PSA census data, Diffun has a population of 58,254. Its Philippine Standard Geographic Code (PSGC) is 0205703000. This postal code is used for mail delivery, logistics, and address verification across all 33 barangays within Diffun.