The municipality was established in the 1815 under the Spanish colonial government in the country. The municipality got its name from the diligent and hardworking people, working hand-in-hand especially during the agricultural harvest season – "Pinamungajan", which originated from the Visayan word pinamuhuan, meant a worker share for his effort during a farm harvest. Over time the Pinamuhuan eventually changed to the current name of the municipality.
(Administratively independent from the province but grouped under Cebu by the Philippine Statistics Authority. Mandaue is grouped under the 6th legislative district of Cebu but still independent from the province.)