City Detail

Ilagan, officially known as the City of Ilagan (Ibanag: Siudad nat Ilagan; Ilocano: Siudad ti Ilagan; Tagalog: Lungsod ng Ilagan), is a 1st class component city and capital of the province of Isabela, Philippines. According to the 2020 census, it has a population of 158,218 people  making it the most populous city in the province. It holds the title as the most number of voters in the province with 98,565 electorates. Ilagan was a first class municipality before it became a city.The city is located on the central portion of the province of Isabela. It is bounded by nine municipalities: on the north by the municipalities of Divilacan, Tumauini, and Delfin Albano; on the west by the municipality of Quirino; on the east by the municipalities of Divilacan, Palanan, and the Pacific Ocean; and on the south by the municipalities of Gamu, Naguilian, Benito Soliven and San Mariano.