Diffun

Diffun
Municipality
Municipality of Diffun
Old Diffun Municipal Hall
Saint Joseph the Worker Parish Church
Diffun Town Proper
Flag of Diffun
Flag
Official seal of Diffun
Seal
Map of Quirino with Diffun highlighted
Map of Quirino with Diffun highlighted
Interactive map of Diffun
Diffun is located in Philippines
Diffun
Diffun
Location within the Philippines
Coordinates: 16°35′37″N 121°30′09″E / 16.5936°N 121.5025°E / 16.5936; 121.5025
CountryPhilippines
RegionCagayan Valley
ProvinceQuirino
District Lone district
Barangays33 (see Barangays)
Government
 
 • TypeSangguniang Bayan
 • MayorMay G. Calaunan
 • Vice MayorMarlito G. Corpuz
 • RepresentativeJunie 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
 • Electorate32,761 voters (2025)
Area
 • 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)
 • Total
58,254
 • Density181.99/km2 (471.34/sq mi)
 • Households
13,942
Economy
 • Income class1st municipal income class
 • Poverty incidence
9
% (2023)
 • Revenue₱ 302.5 million (2024)
 • Assets₱ 800.8 million (2024)
 • Expenditure₱ 290.2 million (2024)
 • Liabilities₱ 277.9 million (2024)
Service provider
 • ElectricityQuirino Electric Cooperative (QUIRELCO)
Time zoneUTC+8 (PST)
ZIP code
3401
PSGC
0205703000
IDD : area code +63 (0)78
Native languagesIlocano
Bugkalot
Tagalog
Websitewww.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 2024 census, it has a population of 58,254 people, making it the most populous town in the province.

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

Geography

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.

Barangays

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

  • Andres Bonifacio (Poblacion)
  • Aurora East (Poblacion)
  • Aurora West (Poblacion)
  • Baguio Village
  • Balagbag
  • Bannawag
  • Cajel
  • Campamento
  • Diego Silang
  • Sittio Der-an
  • Don Mariano Perez, Sr.
  • Doña Imelda
  • Dumanisi
  • Gabriela Silang
  • Gulac
  • Guribang
  • Ifugao Village
  • Isidro Paredes
  • Rizal (Poblacion)
  • Liwayway
  • Luttuad
  • Magsaysay
  • Makate
  • Maria Clara
  • Rafael Palma (Don Sergio Osm)
  • Ricarte Norte
  • Ricarte Sur
  • San Antonio
  • San Isidro
  • San Pascual
  • Villa Pascua
  • Aklan Village
  • Gregorio Pimentel
  • Don Faustino Pagaduan

Climate

Climate data for Diffun, Quirino
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °C (°F) 25
(77)		 26
(79)		 29
(84)		 32
(90)		 32
(90)		 31
(88)		 30
(86)		 30
(86)		 30
(86)		 29
(84)		 27
(81)		 25
(77)		 29
(84)
Mean daily minimum °C (°F) 19
(66)		 20
(68)		 21
(70)		 23
(73)		 24
(75)		 24
(75)		 24
(75)		 24
(75)		 24
(75)		 23
(73)		 22
(72)		 21
(70)		 22
(72)
Average precipitation mm (inches) 119
(4.7)		 83
(3.3)		 54
(2.1)		 37
(1.5)		 133
(5.2)		 132
(5.2)		 161
(6.3)		 163
(6.4)		 153
(6.0)		 142
(5.6)		 160
(6.3)		 224
(8.8)		 1,561
(61.4)
Average rainy days 18.4 13.6 11.6 9.4 19.3 21.9 23.9 23.4 21.1 16.3 18.1 21.4 218.4
Source: Meteoblue

Demographics

Population census of Diffun
YearPop.±% p.a.
1960 9,106—    
1970 14,233+4.56%
1975 17,811+4.60%
1980 23,086+5.32%
1990 31,266+3.08%
1995 36,048+2.70%
2000 39,489+1.97%
2007 42,958+1.17%
2010 48,501+4.52%
2015 52,569+1.55%
2020 56,102+1.38%
2024 58,254+0.91%
Source: Philippine Statistics Authority

Economy

Poverty incidence of Diffun (%)

10
20
30
40
2000
35.60
2003
32.23
2006
23.00
2009
17.48
2012
15.76
2015
13.36
2018
10.64
2021
10.07
2023
9.00

Source: Philippine Statistics Authority

Government

Local government

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.

Elected officials

Members of the Municipal Council
(2019–2022)
Position Name
Congressman Junie E. Cua
Mayor May G. Calaunan
Vice-Mayor Marlito G. Corpuz
Councilors 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

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. 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.

Primary and elementary schools

  • Aklan Village Elementary School
  • Ammogaoen Elementary School
  • Andres Bonifacio Elementary School
  • Baguio Village Elementary School
  • Balagbag Elementary School
  • Bannawag San Antonio Integrated School (Elementary)
  • Bikibik Elementary School
  • Cajel Elementary School
  • Campamento Elementary School
  • Cupianan Elementary School
  • Der-an Integrated School (Elementary)
  • Diego Silang Elementary School
  • Diffun Central School - Integrated SPED Center (Elementary)
  • Diffun West Central School
  • Don Faustino Pagaduan Elementary School
  • Don Mariano Perez Elementary School
  • Doña Imelda Elementary School
  • Dumanisi Integrated School (Elementary)
  • El Elyon Learning Center
  • Guinagat Elementary School
  • Gulac Integrated School (Elementary)
  • Guribang Elementary School
  • Ifugao Village Integrated School (Elementary)
  • Isidro Paredes Elementary School
  • Liwanag Elementary School
  • Liwayway Elementary School
  • Lower Gabriela Elementary School
  • Luttuad Elementary School
  • Macate Elementary School
  • Magsaysay Elementary School
  • Maria Clara Elementary School
  • Pallutan Elementary School
  • Pamungyen Elementary School
  • Pimentel Elementary School
  • Rafael Palma Elementary School
  • Ricarte Norte Elementary School
  • Ricarte Sur Elementary School
  • Rizal Elementary School
  • San Antonio Integrated School (Elementary)
  • San Isidro Integrated School (Elementary)
  • San Pascual Elementary School
  • Sitio Eden Elementary School
  • Turayok Elementary School
  • United Methodist Marvelous Kindergarten School
  • Upper Gabriela Integrated School (Elementary)
  • Villa Pascua Elementary School

Secondary schools

  • 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

Higher educational institution

References

  1. ↑  Municipality of Diffun | (DILG)
  2. ↑ "2015 Census of Population, Report No. 3 – Population, Land Area, and Population Density" (PDF). Philippine Statistics Authority. Quezon City, Philippines. August 2016. ISSN 0117-1453. Archived (PDF) from the original on May 25, 2021. Retrieved July 16, 2021.
  3. ↑ "2024 Census of Population (POPCEN) Population Counts Declared Official by the President". Philippine Statistics Authority. 17 July 2025. Retrieved 18 July 2025.
  4. ↑ "881 Cities and Municipalities Recorded Poverty Incidence of 20 Percent or Lower in 2023". Philippine Statistics Authority. 6 February 2026. Archived from the original on 3 June 2026. Retrieved 7 February 2026.
  5. ↑ "2024 Census of Population (POPCEN) Population Counts Declared Official by the President". Philippine Statistics Authority. 17 July 2025. Retrieved 18 July 2025.
  6. ↑ "Diffun: Average Temperatures and Rainfall". Meteoblue. Retrieved 4 July 2021.
  7. ↑ "2024 Census of Population (POPCEN) Population Counts Declared Official by the President". Philippine Statistics Authority. 17 July 2025. Retrieved 18 July 2025.
  8. ↑ Census of Population (2015). "Region II (Cagayan Valley)". Total Population by Province, City, Municipality and Barangay. Philippine Statistics Authority. Retrieved 20 June 2016.
  9. ↑ Census of Population and Housing (2010). "Region II (Cagayan Valley)" (PDF). Total Population by Province, City, Municipality and Barangay. National Statistics Office. Retrieved 29 June 2016.
  10. ↑ Censuses of Population (1903–2007). "Region II (Cagayan Valley)". Table 1. Population Enumerated in Various Censuses by Province/Highly Urbanized City: 1903 to 2007. National Statistics Office.
  11. ↑ "Province of". Municipality Population Data. Local Water Utilities Administration Research Division. Retrieved 17 December 2016.
  12. ↑ "Poverty incidence (PI):". Philippine Statistics Authority. Retrieved December 28, 2020.
  13. ↑ "Estimation of Local Poverty in the Philippines" (PDF). Philippine Statistics Authority. 29 November 2005. Archived from the original (PDF) on 3 February 2021. Retrieved 4 August 2012.
  14. ↑ "2003 Small Area Estimates of Poverty (Full Report)" (PDF). Philippine Statistics Authority. 11 March 2009. Archived from the original (PDF) on 21 May 2025. Retrieved 4 August 2012.
  15. ↑ "2006 City and Municipal Level Poverty Estimates". Philippine Statistics Authority. 3 August 2012. Archived from the original on 21 May 2025. Retrieved 4 August 2012.
  16. ↑ "PSA Releases the 2012 Municipal and City Level Poverty Estimates". Philippine Statistics Authority. 31 May 2016. Archived from the original on 21 September 2019. Retrieved 1 June 2016.
  17. ↑ "PSA Releases the 2015 Municipal and City Level Poverty Estimates". Philippine Statistics Authority. 10 July 2019. Archived from the original on 24 February 2020. Retrieved 11 July 2019.
  18. ↑ "PSA Releases the 2018 Municipal and City Level Poverty Estimates". Philippine Statistics Authority. 15 December 2021. Archived from the original on 15 January 2022. Retrieved 16 December 2021.
  19. ↑ "PSA Releases the 2021 City and Municipal Level Poverty Estimates". Philippine Statistics Authority. 2 April 2024. Archived from the original on 3 April 2024. Retrieved 3 April 2024.
  20. ↑ "881 Cities and Municipalities Recorded Poverty Incidence of 20 Percent or Lower in 2023". Philippine Statistics Authority. 6 February 2026. Archived from the original on 3 June 2026. Retrieved 7 February 2026.
  21. ↑ "2019 National and Local Elections" (PDF). Commission on Elections. Archived (PDF) from the original on 2020-10-06. Retrieved March 10, 2022.
  22. ↑ "THE SCHOOLS DIVISION OF QUIRINO". deped quirino | SDO Quirino Website. Archived from the original on 2022-04-17. Retrieved March 13, 2022.
  23. ↑ "DEPED REGIONAL OFFICE NO. 02". DepED RO2 | The official website of DepED Regional Office No. 02. Archived from the original on 2022-04-12.
  24. ↑ "Masterlist of Schools" (PDF). Department of Education. January 15, 2021. Retrieved April 14, 2025.