CALUMPIT, a municipality (with administration centre and 23 barrios or districts) of the province of Bulacan, Luzon, Philip pine Islands, at the junction of the Quingua and Pampanga rivers, about 25 m. N.W. of Manila. Pop. (1918) 14,844, of whom only 7 were whites. It is on the Manila and Dagupan railway and the bridge across the Pampanga at this point is one of the longest in the Philippines. The surrounding fertile plain produces rice, sugar, corn and a variety of fruits. The market here is famous. In 1918 it had 9 manufacturing establishments, with output valued at 45,500 pesos, and 24 sugar-mills and 65o household industry establishments with output valued at 166,400 pesos. Of the 12 schools, i i were public. Much of the community was destroyed by insurgents in 1899. The language spoken is Tagalog.