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Municipality of Calanasan
Map of Apayao with Calanasan highlighted
Map of Apayao with Calanasan highlighted
Calanasan is located in Philippines
Location within the Philippines
Coordinates: 18°15′N 121°02′E / 18.25°N 121.03°E / 18.25; 121.03Coordinates: 18°15′N 121°02′E / 18.25°N 121.03°E / 18.25; 121.03
Country Philippines
RegionCordillera Administrative Region (CAR)
DistrictLone District
FoundedJune 25, 1963
Barangays20 (see Barangays)
 • TypeSangguniang Bayan
 • MayorMartin Lucero B. Lawat
 • Vice MayorShamir M. Bulut
 • Electorate7,296 voters (2016)
 • Total1,256.15 km2 (485.00 sq mi)
 (2015 census)[3]
 • Total12,604
 • Density10/km2 (26/sq mi)
Time zoneUTC+8 (PST)
ZIP code
IDD:area code+63 (0)74
Climate typeTropical rainforest climate
Income class1st municipal income class
Revenue (₱)194.2 million  (2016)
Native languagesIsnag

Calanasan, officially the Municipality of Calanasan, (Ilokano: Ili ti Calanasan; Tagalog: Bayan ng Calanasan), (formerly known as Bayag,[4] meaning "slow") is a 1st class municipality in the province of Apayao, Philippines. According to the 2015 census, it has a population of 12,604 people.[3]

Its land area is 1,256.15 square kilometres (485.00 sq mi), making it the largest municipality in the province. Calanasan is the source of the Apayao River which empties into the South China Sea and is the only navigable river in Apayao.


Calanasan is located at 18°15′N 121°02′E / 18.25°N 121.03°E / 18.25; 121.03.

According to the Philippine Statistics Authority, the municipality has a land area of 1,256.15 square kilometres (485.00 sq mi)[2] constituting 28.46% of the 4,413.35-square-kilometre- (1,704.00 sq mi) total area of Apayao.

Calanasan is 607 kilometres (377 mi) north from Manila and located in the north-western section of Apayao bordering Santa Praxedes and Claveria in the north, Adams and Carasi in the west, Solsona in the south-west, Kabugao on the south, and Luna and some parts of Kabugao on the east.

The town’s topography or slope is predominantly rugged and mountainous with sporadic flood plains and plateaus. The municipality cradles the larger part of the Apayao-Abulog watershed area as the main source of streams that fills the mighty river which originates from the municipality.

Calanasan has two pronounced seasons, the dry and the wet seasons. The dry season starts in the latest part of December and ends in the middle part of June. The wet season starts in July and ends in the middle part of December. The hottest month is May and rainfall is heaviest in August while strong typhoons usually occur within the period of August to October and the December used to be the coolest month.


Calanasan is politically subdivided into 20 barangays.[5]

PSGC Barangay Population ±% p.a.
2015[3] 2010[6]
148101001 Butao 6.6% 832 672 4.15%
148101002 Cadaclan 5.0% 629 437 7.18%
148101013 Don Roque Ablan Sr. 1.9% 239 273 −2.50%
148101014 Eleazar 1.1% 139 121 2.68%
148101015 Eva Puzon 9.9% 1,254 1,072 3.03%
148101016 Kabugawan 4.1% 519 484 1.34%
148101003 Langnao 1.8% 229 164 6.56%
148101004 Lubong 3.9% 494 612 −4.00%
148101017 Macalino 2.8% 348 265 5.32%
148101005 Naguilian 2.6% 332 389 −2.97%
148101006 Namaltugan 7.3% 918 924 −0.12%
148101007 Poblacion 15.9% 2,008 1,939 0.67%
148101008 Sabangan 3.6% 454 379 3.50%
148101018 Santa Elena 2.3% 292 221 5.45%
148101009 Santa Filomena 7.9% 1,002 859 2.98%
148101011 Tanglagan 16.0% 2,018 1,951 0.64%
148101012 Tubang 3.6% 456 411 2.00%
148101010 Tubongan 3.5% 441 395 2.12%
Total 12,604 11,568 1.65%


Population census of Calanasan
YearPop.±% p.a.
1918 2,509—    
1939 2,743+0.43%
1948 3,550+2.91%
1960 3,740+0.44%
1970 5,214+3.37%
1975 5,727+1.90%
1980 5,556−0.60%
1990 10,699+6.77%
1995 11,679+1.66%
2000 12,806+1.99%
2007 9,663−3.81%
2010 11,568+6.77%
2015 12,604+1.65%
Source: Philippine Statistics Authority[3][6][7][8]

In the 2015 census, Calanasan had a population of 12,604.[3] The population density was 10 inhabitants per square kilometre (26/sq mi).

Calanasan is dominated by Isnag Tribe, living with them are the Ilocanos, Igorots and Kalingas. The main dialects of the people are the Isnag and the Ilocano.

Philippine Eagle Sanctuary[edit]

A Philippine eagle nestling

The Philippine Eagle Foundation began its search of eagles in Apayao in 2011 after reports of huge eagles were roaming the area for centuries.[9] On March 22, 2013 scientists discovered the stronghold of critically endangered Philippine eagles, the country's national bird, in Luzon island within the vicinity of the Calanasan Lowland Forest.[10] In January 2015, the town of Calanasan initiated a program which protected 3,000 hectares of forests under its jurisdiction.[11] Additionally, the province of Apayao is one of the very few in the country which has an approved forest land use plan (FLUP).[12] The first active Philippine eagle nest in Apayao was discovered in July 2015.[13]

On 9th of July 2018,[14] the provincial government of Apayao announced their intent for the province to be a UNESCO Biosphere Reserve. The province, which possesses more than 286,000 hectares of virgin forests, also noted that they have sent four of their personnel to train in the United States under the US Foreign Service to hasten the declaration of the site.[15] In January 16, 2019, the provincial government announced that they are at the 'legwork for the inscription'.[16]


Economic activity in the municipality is based on agricultural production like farming and fishing and livelihood activities like basketry, soft broom making and furniture making.

The municipality has no level lands for extensive rice production except in the northern part of the municipality. The total land area devoted to agriculture is 45.316 hectares (111.98 acres) in which total land area irrigated is 2,347.49 hectares (5,800.8 acres). Its produce include coffee, corn, root crops, peanuts and other legumes, banana, pineapple and some vegetables.


The town has vast variety of wild flora and fauna which contributes to its eco-tourism potential. The town is surrounded with virgin forests, cascading waterfalls, and clear rivers.

Potential tourist attractions include:

  • Apayao River — Poblacion
  • Girgirra’ Falls — Ninoy Aquino
  • Ziwanan River — Cadaclan
  • Maxibab Falls — Santa Filomena
  • Carmella Falls — Eva
  • Pisong Lake
  • Danao Lake — Sitio Danao, Poblacion
  • Purit Cave
  • Bantay Malingudu — Poblacion
  • Agamata National Park and Wildlife Sanctuary — near the Ilocos Norte boundary, was established in the remote area of sharp peaks and plateaus. This undeveloped area, with pine stands, lush vegetation and mossy forest, affords a panoramic view of Ilocos Norte and Laoag City on the west. It is ideal for hiking, camping, nature tripping and bird watching.
  • Blue Haven
  • Mount Kilang


  • Sinandila/Sinursor Festival and Pippiru' Festival (Boat Racing) — celebrated every third week of March
  • Calanasan Town Fiesta — celebrated every March which is coming together of the people of Calanasan, The month-long activities highlights the Agro-Industrial and trade fair which showcase the different products of Calanasan and Highlights also the Sports fest, Calanasan got Talent and the Street Dance Competition together with most awaited part the "Search for Miss Dam-ag naya Calanasan".
  • Say-Am Festival — is a feast featuring and ushering the traditional way of Isnag's thanksgiving to the Higher Supreme unseen being called "Alawagan" executed and commence through rituals spiced with pep songs, native chants and dances called the "Talip" and "Tad-do". The holding and celebration of Say-am in the older days connotes status - that the family is respectable and well-to-do. It is Celebrated every third week of March.

See also[edit]


  1. ^ "Municipality". Quezon City, Philippines: Department of the Interior and Local Government. Retrieved 31 May 2013.
  2. ^ a b "Province: Apayao". PSGC Interactive. Quezon City, Philippines: Philippine Statistics Authority. Retrieved 12 November 2016.
  3. ^ a b c d e Census of Population (2015). "Cordillera Administrative Region (CAR)". Total Population by Province, City, Municipality and Barangay. PSA. Retrieved 20 June 2016.
  4. ^ "Republic Act No. 4980 - An Act Changing the Name of the Municipality of Bayag, Mountain Province, to Calanasan". Chan Robles Virtual Law Library. 17 June 1967. Archived from the original on 4 March 2016. Retrieved 4 November 2016.
  5. ^ "Municipal: Calanasan". PSGC Interactive. Quezon City, Philippines: Philippine Statistics Authority. Retrieved 8 January 2016.
  6. ^ a b Census of Population and Housing (2010). "Cordillera Administrative Region (CAR)". Total Population by Province, City, Municipality and Barangay. NSO. Retrieved 29 June 2016.
  7. ^ Censuses of Population (1903–2007). "Cordillera Administrative Region (CAR)". Table 1. Population Enumerated in Various Censuses by Province/Highly Urbanized City: 1903 to 2007. NSO.
  8. ^ "Province of Apayao". Municipality Population Data. Local Water Utilities Administration Research Division. Retrieved 17 December 2016.
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External links[edit]