Diffun

Diffun
Municipality
Municipality of Diffun
Diffun Town Hall
Flag Seal
Map of Quirino with Diffun highlighted
OpenStreetMap
Diffun Location within the Philippines
Coordinates: 16°35′37″N 121°30′09″E / 16.5936°N 121.5025°E / 16.5936; 121.5025
Country	Philippines
Region	Cagayan Valley
Province	Quirino
District	Lone district
Barangays	33 (see Barangays)
Government  [1]
• Type	Sangguniang Bayan
• Mayor	May G. Calaunan
• Vice Mayor	Marlito G. Corpuz
• Representative	Junie E. Cua
• Municipal Council	Members Cesar M. Agustin Ma. Karen A. Baldonado-Guillermo Gloria C. Antolin Renato M. Antolin Elpidio G. Javonillo Michael A. Lidiang Roseller A. Escobar Cesar C. Valencia
• Electorate	32,761 voters (2025)
Area [2]
• Total	320.10 km2 (123.59 sq mi)
Elevation	160 m (520 ft)
Highest elevation	551 m (1,808 ft)
Lowest elevation	95 m (312 ft)
Population  (2024 census)[3]
• Total	58,254
• Density	180/km2 (470/sq mi)
• Households	13,942
Economy
• Income class	2nd municipal income class
• Poverty incidence	10.07 % (2021)[4]
• Revenue	₱ 317.3 million (2022)
• Assets	₱ 790.9 million (2022)
• Expenditure	₱ 240.3 million (2022)
• Liabilities	₱ 225.9 million (2022)
Service provider
• Electricity	Quirino Electric Cooperative (QUIRELCO)
Time zone	UTC+8 (PST)
ZIP code	3401
PSGC	0205703000
IDD : area code	+63 (0)78
Native languages	Ilocano Bugkalot Tagalog
Website	www.diffun-quirino.gov.ph

Diffun, officially the Municipality of Diffun (Ilocano: Ili ti Diffun; Tagalog: Bayan ng Diffun), is a municipality in the province of Quirino, Philippines. According to the 2020 census, it has a population of 56,102 people.^[5]

Commercial establishments proliferated along the provincial road due to its proximity to Santiago City as the main commercial hub of the region.

Diffun is the most populous town in Quirino Province and is 9 kilometres (5.6 mi) from Cabarroguis, 21 kilometres (13 mi) from Santiago City, and 389 kilometres (242 mi) from Manila.

Diffun is situated 10.99 kilometres (6.83 mi) from the provincial capital Cabarroguis, and 360.48 kilometres (223.99 mi) from the country's capital city of Manila.

Diffun is politically subdivided into 33 barangays. Each barangay consists of puroks and some have sitios.

Poverty incidence of Diffun

Diffun is part of the lone congressional district of the province of Quirino. It is governed by a mayor, designated as its local chief executive, and by a municipal council as its legislative body in accordance with the Local Government Code. The mayor, vice mayor, and the municipal councilors are elected directly in polls held every three years.

The Schools Division of Quirino governs the town's public education system.^[21] The division office is a field office of the DepEd in Cagayan Valley region.^[22] There are two schools district offices which govern the public and private elementary and high schools throughout the municipality. Theser are Diffun I District, and Diffun II District.^[23]

• Bannawag San Antonio Integrated School
• Der-an Integrated School
• Diffun Central School - Integrated SPED Center
• Diffun National High School
• Dumanisi Integrated School
• Gulac Integrated School
• Ifugao Village Integrated School
• Magsaysay National High School
• Quirino State University Laboratory High School
• San Antonio Integrated School
• San Isidro Integrated School
• St. Mary's Academy
• Upper Gabriela Integrated School

• Quirino State University

Wikimedia Commons has media related to Diffun.

• Diffun Profile at PhilAtlas.com
• Philippine Standard Geographic Code
• Philippine Census Information
• Local Governance Performance Management System Archived 2016-03-04 at the Wayback Machine