Abucay, officially the Municipality of Abucay,, is a 3rd class municipality in the province of Bataan, Philippines. According to the 2020 census, it …Abucay, officially the Municipality of Abucay,, is a 3rd class municipality in the province of Bataan, Philippines. According to the 2020 census, it has a population of 42,984 people. It is 5 kilometres from Balanga and 119 kilometres from Manila, accessible via the Bataan Provincial Expressway, off Exit 25, or the parallel National Road in Bataan. Its westernmost elevated section is located within the Bataan National Park.