Diffun, officially the Municipality of Diffun, is a 2nd class municipality in the province of Quirino, Philippines. According to the 2020 census, it has a population of 56,102 people. 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 it is 9 km from Cabarroguis, 21 km from Santiago City, and 389 km from Manila.

Geography

Barangays

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

Climate

Demographics

Economy

Government

Local government

Diffun, belonging to the lone congressional district of the province of Quirino, 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 councilors are elected directly by the people through an election which is being held every three years.

Elected officials

Education

The Schools Division of Quirino governs the town's public education system. The division office is a field office of the DepEd in Cagayan Valley region. The office governs the public and private elementary and public and private high schools throughout the municipality.

Higher educational institution