Laoag City (Ilokano: Ciudad ti Laoag; Filipino: Lungsod ng Laoag) is a 1st class city in the province of Ilocos Norte, Philippines. It is the capital city of Ilocos Norte, and the province's political, commercial, and industrial hub. It is the location of the Ilocos region's only commercial airport. The municipalities of San Nicolas, Paoay, Sarrat, Vintar, and Bacarra form its boundaries. The foothills of the Cordillera Central mountain range to the east, and the South China Sea to the west are its physical boundaries.