BULACAN, a municipality (with 16 barrios or districts), of the province of Bulacan, Luzon, Philippine Islands, on an arm of the Pampanga delta, 22m. N.N.W. of Manila, with which it has railway connection. Pop. (1918), 10,423, of whom 5,013 were males and two whites. Sugar, rice and tropical fruits are the principal products of the fertile region in which it lies, and it is widely known for its fishponds and fish. The chief manufactures are jusi and piña cloth, ilang perfume and sugar. In 1918 it had ten schools, of which nine were public. It was founded in 1578 by the Spaniards, and in 1898 was almost completely destroyed by fire. It has long been an important centre. The language is Tagalog.