The municipality of Iba is bounded by the municipalities of Botolan to the south, Palauig to the north, the province of Tarlac to the east, and the South China Sea to the west. Like most of the municipalities in the province, Iba is geographically bound by the coast in the west with the Zambales Mountains in the eastern portion of the municipality. Iba is about 200 kilometres (120 mi) north-west of Manila. Being a center of employment and commerce as well being the host of major educational institutions, the population of Iba increase during day time because of traders, market buyers, students, government and private employees flocking in the town. Some of the newest establishments in Iba are Puregold and the Iba Town Center - the first and only community mall in the heart of Zambales.