Bulacán, a town of the province of Bulacán, Luzon, Philippine Islands, on an arm of the Pampanga delta, 22 m. N.N.W. of Manila. Pop. (1903) 11,589; after the census enumeration, the town of Guiguintó (pop. 3948) was annexed. Bulacán is served by the Manila-Dagupan railway. Sugar, rice, indigo and tropical fruits are the chief products of the fertile district in which the town lies; it is widely known for its fish-ponds and its excellent fish, and its principal manufactures are jusi, piña, ilang ilang perfume and sugar. With the exception of the churches and a few stone buildings, Bulacán was completely destroyed by fire in 1898.