Before Cabagan became a regular municipality, it was then part of the territory La Irraya of the Cagayan Valley. Irraya was the term for the native’s name and their dialect which means “upriver”.

In 1607, the Provincial Chapter of the Holy Rosary ordered Frays Luis Flores and Francisco Minaio to the Irraya speaking communities, to teach the natives to speak Ibanag (Ybanag). During those days, natives were discouraged to speak Irraya because Spaniards believed that was the language of the “pagans” or the “Kalingas”.  When Ibanag was introduced by the Spaniards to the natives, it became the official language of the valley. Today, some residents of Barangay Tallag and San Bernardo can still remember some Irraya phrases.

At present, Ibanag speaking community can be found in the northeastern provinces of Cagayan and Isabela, particularly in Tuguegarao City, Solana, Abulug, Camalaniugan, Cabagan and City of Ilagan.

In 1621, historic Irraya Revolt led to the creation of a town called Maquila (quilat/quili-Ibanag word for sparkling or clear). On November 30, 1646, due to its proximity to Tuguegarao, the residents of Maquila were transferred to a new site upstream southward at the mouth of the Cagayan and Pinacanauan Rivers of Cabagan and is now the poblasyon (town center) of San Pablo. The new site was called “Cabagan”.

Cabagan became a charter town in November 30, 1646 and ecclesiastically in May 15, 1647 with Saint Paul the Apostle as the patron saint. The origin of the name Cabagan was derived from a native word “bag” or “bajaque” which means stores selling g-strings. Another version stated that Cabagan came from the word “cabbagang” which means “pilgrim” or stranger.

From 1646 to 1877, the present-day Municipalities of Cabagan and San Pablo were just one town called “Cabagan”. In between these periods, in 1761, a settlement across the Pinacanauan river started to grow and because of its remarkable progress, on January 25, 1877, by virtue of Royal Decree of Spanish Crown, the old town of Cabagan was transferred by Dominican Fray Pedro Ricart to a new site.

In 1888 however, the Spaniards restored the abandoned old site of Cabagan and developed it into another town. This resulted to the emergence of two towns wherein the restored old site of Cabagan was called Cabagan Viejo(Viejo-Spanish word for old) with Fray Segundo Rodriguez as the cura parocco and the new site of Cabagan as Cabagan Nuevo(Nuevo-Spanish word for new). When the Americans came to rule the Philippines after the Spaniards, they renamed Cabagan Nuevo as simply “CABAGAN”, and the Cabagan Viejo became the town known today as San Pablo.

Cabagan was categorized as a 1st Class Municipality in 2004 under the administration of Atty. Christopher A. Mamauag.


  • (142 Years as of 2019)
Before 15th CenturyCABAGAN (San Pablo and Cabagan) was then part of the territory La Irraya (Yrraya in other manuscripts) of the Cagayan Valley

Irraya was also the term for the native’s name and their dialect which means “upriver”
From Tuguegarao up to the present town of Gamu, Isabela
1607Provincial Chapter of the Holy Rosary Province (or Dominicans) ordered Fray Luis Flores and Francisco Minaio to the Irraya speaking community in helping the natives to learn to speak Ibanag (Ybanag).
Natives were discouraged to speak Irraya because Spaniards believe that was the language of the “pagans” or the Kalingasat that time.
Ibanag was made the official language in the valley.

From Lal-lo, Spaniards introduced Ibanag at Tuguegarao and the nearby towns (Solana, Abulug, Cabagan up to Ilagan).
Some residents of Barangay Tallag & San Bernardo can still remember some Irraya phrases
1621Historic Irraya Revolt led to the creation of a town called Maquila (quila/quili-Ibanag word for sparkling or clear)Junction of the Cagayan and Pinacanauan rivers
November 30, 1646Residents of Maquila was transferred to the new site Cabagan (the town center of San Pablo).
Cabagan came from a native word “bag” or “bajaque” which means stores selling g-strings.
Another version stated that Cabagan came from the word “cabbagang” which means “pilgrim” or stranger.
May 15, 1647Church of Cabagan was constructed named San Pablo Apostol de Cabagan with a lofty bell tower which was the tallest in Cagayan ValleySan Pablo Church in San Pablo, Cabagan (372 years)
1709Cabagan Church and its big convent was destroyed by a fireSan Pablo Church in San Pablo, Cabagan
1718Rebellion in Cabagan led the natives to flee to the mountains for safety
1738Military Fort of Cabagan was destroyed by earthquakesSan Pablo, Cabagan
March 20, 1758Dominican Missionary of Cabagan, Fray Jose Marin, reported a cholera epidemic which killed an approximately 500 people in Cabagan and 800 in TuguegaraoCabagan and San Pablo, Isabela
1841Fray Antonio Garcia built the casa real in Cabagan. Casa real is the government center during the Spanish rule in the alcaldia (town) 0x30 sqm two-storey building made of stone with inscription to one of its walls “ESTA CASA TRIBUNAL SE CON CLUIO EN ANO DE 1846, SIENDO GOVERNAD D’JUAN DE GUZMANSan Pablo
1857Casa real was burned but eventually repaired
1861A Royal Decree of Spanish Crown was issued separating the new village of Cabagan (now Cabagan)
January 25, 1877The old town of Cabagan (now San Pablo) was transferred by Dominican Fray Pedro Ricart to a new site-the present territory of Cabagan because of the unhealthiness of the old site and that progress is remarkable at the new town (now Cabagan Nuevo)
Spaniards resurrected the abandoned site of Cabagan (now San Pablo) into a new town and called “Cabagan Viejo” with Fray Segundo Rodriguez as the cura parocco. The other Cabagan was named “Cabagan Nuevo to avoid confusion on the two “Cabagans”
Viejo means old and Nuevo means New in Spanish
Fray Segundo Rodriguez renovated partly the church.
1898 upWhen the Americans arrived they re-christened Cabagan Nuevo as simply “CABAGAN” and Cabagan Viejo as “SAN PABLO”
2004Categorized as a 1st Class Municipality

Physical Structure

Upper left17o25’48.44”121o39’14.29
Upper Right17o25’13.53”122o5’32.27”
Lower Left17o22’18.53”121o39’44.56”
Lower Right17o21’18.16”122o5’29.33”

The municipality is surrounded by seven (7) other municipalities of Isabela and one municipality from the Province of Kalinga. On the north is the Municipality of San Pablo; on the northwest are the municipalities of Santa Maria and Quezon, Isabela and Rizal, Kalinga; on the northeast are the municipalities of Divilacan and Maconacon, Isabela; on the southeast is the Municipality of Santo Tomas; and on the south is the Municipality of Tumauini.

Total Land Area

Existing Land UseArea
(in hectares)
Protection Area11,631.30
Protection Forest19,770.00
Production Forest9,468.10
Quarry Sites30.00
Built Up Area29,848.18
Open Grassland1,840.82
Utility and Transportation51.44
Socialized Housing3.10
Total Land Area41, 479.48
*Total Land Area is 2.43% of the Province of Isabela’s Land Area


Type III No pronounced season
Relatively wet from May to October and dry for the rest of the year.
Maximum rain period are not very pronounced, dry season lasts from one to three months.
The area is partly sheltered from the northeast monsoon and trade winds but open to the southwest monsoon or at least two frequent storms.
TYPE IVCharacterized by even distribution of rainfall throughout the year
The most common air currents in the country are northeast monsoon (from the higher pressure of Asia), the trade winds (from the pacific), and the southeast monsoon (from the southern hemisphere).
The general direction of the winds from these sources are: From north to east (October to January) From east to southeast (February to April)
Southerly (from May to September)


Hottest Months of the YearMay and June with recorded 400 celcius
Coldest Month of the YearJanuary with recorded 170 celcius


Central Portionlevel to sloping terrains
Western and Central Eastern portionsloping to undulating terrains
Eastern to Southeasternhilly to mountainous terrains


Slope CategoryArea (in hectares)Percentage (%)


  Soil Series  Area (hectares)  Percentage (%)
San Juan Clay3,851.859.29
Cauayan Clay1,951.954.71
San Manuel Sandy Loam10,672.1125.73
Rugao Sandy Clay Loam6,908.4116.65
Mountain Soils18,095.1643.62
Source: DENR

Social Structure


Population (as of 2020 CBMS Data)50,709
Population Growth Rate (2000-2010)0.97%
Household Population (as of 2020 data)12,597
Average Household Size4.58
Barangay PopulationParticipation Rate2020
Grand Total100.00%51,926
Urban Sub-Total45.66%23,154
Casibarag Norte6.083,084
Casibarag Sur5.222,647
Centro (Pob.)2.171,100
Rural Sub-Total54.34%27,555
San Bernardo5.102,588
San Juan4.162,107
Masipi East4.532,296
Masipi West3.721,887
San Antonio3.391,720
Pilig Alto2.811,427
Pilig Abajo1.96995


Income class  1st
Major economic activitiesAgriculture & Services
Actual IRAPhp 208,920,395.00
Locally Sourced incomePhp   22,031,628.15
Other RevenuesPhp  17,410,033.00
Total LGU incomePhp257,088,364.32


Political Subdivision

Located in the 1st District of the Province of Isabela
No. of Barangays26
No. of Precincts171
No. of Registered Voters26,034

Political Composition

Municipal Officials

Municipal MayorAtty. Christopher A. Mamauag
Vice-MayorHon. Lovier V. Masigan
Sangguniang Bayan MemberHon. Randolph E. Zipagan
Sangguniang Bayan MemberHon. Reymar C. Zipagan
Sangguniang Bayan MemberHon. Soidemer Francisco R. Guingab
Sangguniang Bayan MemberHon. Mian Kenn B. Acorda
Sangguniang Bayan MemberHon. Hector A. Mamauag
Sangguniang Bayan MemberHon. Stephen P. Ramos
Sangguniang Bayan MemberHon. Diwayne Jake C. Mamauag
Sangguniang Bayan MemberHon. Leonardo Ronald A. Baricaua
 Barangay Officials 
Punong Barangay – Aggub Hon. Reynaldo M. Salavaria
Punong Barangay – AnaoHon. Venus R. Gatan
Punong Barangay – AngancasilianHon. Alfredo S. Macapallag
Punong Barangay – BalasigHon. Fenimor M. Marayag
Punong Barangay – CansanHon. Marivic M. Malabug
Punong Barangay – Casibarag NorteHon. Arthur L. Masiddo
Punong Barangay – Casibarag SurHon. Glenn V. Aggabao/LnB President
Punong Barangay – CatabayunganHon. Melchor E. Zipagan III
Punong Barangay – CentroHon. Leonardo P. Bautista Jr.
Punong Barangay – CubagHon. Teodoro B. Guiyab
Punong Barangay – GaritaHon. Jayson B. Saquing
Punong Barangay – LuquiluHon. Enrique C. Baquiran
Punong Barangay – MabangugHon. Joean A. Marayag
Punong Barangay – MagassiHon. Rolando A. Bautista
Punong Barangay – Masipi EastHon. Sonny R. Rumbaua
Punong Barangay – Masipi WestHon. Georgie B. Melad
Punong Barangay – NgaragHon. Romeo D. Dalafu
Punong Barangay – Pilig AbajoHon. Panchito P. Betay
Punong Barangay – Pilig AltoHon. Randy B. Palattao
Punong Barangay – San AntonioHon. Marlito U. Agabin
Punong Barangay – San BernardoHon. Ferdito G. Angolluan
Punong Barangay – San JuanHon. Romel B. Zipagan
Punong Barangay – SauiHon. Erwin P. Banguilan
Punong Barangay – TallagHon. Joylin Guingab
Punong Barangay – UgadHon. Angelito M. Panganiban
Punong Barangay – UnionHon. Marcial D. Acierto


School LevelNo. of Schools
     Pre-School to Elementary4
     Secondary to Tertiary1
     Vocational/TechnicalSeasonal thru LGU


District Hospital (Operated by PGI)1
Main Health Center1
Barangay Health Center27
TB DOTS Facility1
Private Medical Clinics13
Private Dental Clinics6
Medical Personnel and Support Staff24



Main Police Station1
Police Outposts1
No. of Uniformed Personnel62
No. of Non-Uniformed Personnel4
No. of Civilian Employees59


Main  Station1
Total No. of Officers1
No. of Non-Officer Personnel12

Jail and Penology

Total No. of Officers1
No. of Non-Officer Personnel23


Telephone Providers1
Cellular Sites3
Cable Television Station2
Postal Service1
Private Internet Cafes7
Internet Provider7


Mode of TransportationArea
Public Utility VehiclesNational Highways
TricycleUrban and Rural Barangays
KalesaWithin Urban Barangays
Motorized BoatRiverside Barangays


National Roads16 kilometers
Provincial Roads10 kilometers
Municipal Roads9 kilometers
Barangay Roads72 kilometers


Banking Institutions4
Remittance Centers13


SourceCovered Barangays
Deep WellAll Barangays
Spring WaterMasipi East
Water District9 Urban Barangays and 1 Rural  (Barangay San Antonio)


Sanitary Landfill1
Material Recovery Facilities27 (including MRF in SLF)


Oval Ground1
Basketball Courts26
Protected Park1
Freedom Park1
Private Physical Gymnasium1
Computer Gaming Stations29