In January 1912, Pola was separated from Pinamalayan as township and in 1920, Bongabon was separated from Pinamalayan as a municipal district under Act No. 2824 of March 15, 1919.
On or about January 20, 1942, the Japanese Army from Calapan occupied the town and appointed Carlos Aguilocho and M. Medina as occupation Mayors.