Ilagan

Ilagan
City of Ilagan
Ilagan Rizal Park
Nicknames: 
  • Center of Eco-Tourism Adventure in Region 2
  • Home of the World's Largest Wooden Lounge Chair (Butaka)
  • Sports Tourism Hub of the North
  • Corn Capital of the Philippines
Motto(s): 
Sulong Pa! Lungsod ng Ilagan
(More Progress! City of Ilagan)
Anthem: City of Ilagan Hymn (formerly, Martsa ng Ilagan (Ilagan March))
Map of Isabela with Ilagan highlighted
Interactive map of Ilagan
Ilagan
Location within the Philippines
Coordinates: 17°08′56″N 121°53′22″E / 17.1489°N 121.8894°E / 17.1489; 121.8894
CountryPhilippines
RegionCagayan Valley
ProvinceIsabela
District 1st district
FoundedMay 4, 1686
CityhoodAugust 11, 2012
Barangays91 (see Barangays)
Government
 • TypeSangguniang Panlungsod
 • MayorJosemarie L. Diaz
 • Vice MayorJay Eveson C. Diaz
 • RepresentativeAntonio T. Albano
 • City Council
Members
  • Rachel Villanueva
  • Kit Bello
  • Harold Olalia
  • Joji Borromeo
  • Lillian Bringas
  • Antonio Manaligod Jr.
  • Rolly Tugade
  • Perly Gaoiran
  • Gaylor Malunay
  • Bic-Bic Albano
 • Electorate105,526 voters (2025)
Area
 • Total
1,166.26 km2 (450.30 sq mi)
Elevation
139 m (456 ft)
Highest elevation
1,388 m (4,554 ft)
Lowest elevation
24 m (79 ft)
Population
 (2024 census)
 • Total
164,020
 • Density140.64/km2 (364.25/sq mi)
 • Households
39,663
Demonym(s)Ilagueño (m)
Ilagueña (f)
Economy
 • Income class1st city income class
 • Poverty incidence
14
% (2021)
 • Revenue₱ 2,857 million (2022)
 • Assets₱ 6,137 million (2022)
 • Expenditure₱ 2,158 million (2022)
 • Liabilities₱ 2,051 million (2022)
Service provider
 • ElectricityIsabela 2 Electric Cooperative (ISELCO 2)
 • WaterMetro Ilagan Water
Time zoneUTC+8 (PST)
ZIP code
3300
PSGC
IDD:area code+63 (0)78
Native languagesIbanag
Ilocano
Tagalog
Patron saintSaint Ferdinand of Castile
Websitecityofilagan.gov.ph

Ilagan, officially the City of Ilagan (Ibanag: Siudad nat Ilagan; Ilocano: Siudad ti Ilagan; Filipino: Lungsod ng Ilagan), is a component city and capital of the province of Isabela, Philippines. According to the 2024 census, it has a population of 164,020 people, making it the most populous city in the province and the second most-populous in Cagayan Valley after Tuguegarao. As of 2025, it also had the highest number of voters in the province, with 105,526 voters.

It is dubbed as the corn capital of the Philippines, and the home of the country's largest armchair locally known as butaka.