Brief History
How the barangay got its name is based from stories of early habitants of the place. according to these old folks, before and during the Spanish Regime in the Philippines, Ilwas, Subic, Zambales was a swampy place where "Calumpini" and "Pandan" thrived thickly in many places. Being so, the plants served as camouflage of the guerillas in their scape from the Spaniards making the place the exit point of these fighters.
This is one of the reason why the place was named "ILWA" meaning "EXIT".
Other natives of Ilwas claimed that the place was the center for transporting commodities to the market and other places of the province, thus the name "ILWAS" which came from a tagalog word "ILUWAS" (To bring, To travel with).
As years passed by, the place was being developed and people from different places of the country settled permanently.
