Castillejos, Zambales is a municipality in the province of Zambales, Philippines. Castillejos is now a developing municipality because it has some commercial establishments like 7-eleven, Chic-boy, Andoks, and RM Mall which is the first mall in the town. The settlement we now know as Castillejos was founded sometime in the middle of the 18th century. According to Agustin Dela Cavada in his Historias Filipinas, the creation of Castillejos took place – 1743, while that of Subic in 1769. Jose Angelo M. Dominguez Mayor – July 1, 2010 – present