The municipality of Mauban, one of the many coastal municipalities of Quezon, is located at the mid-section eastern coast of the province. It is some 150km-road distance from Manila. Graphically, it is within 121040’ to 212052’ East longitude, and 14007’ and 14019’ North latitude. It is one of the few municipalities in Quezon with a satellite island.

    The municipality is landlocked on the north, south, and west sides by seven municipalities and a province and opens to the sea by its east side. Mauban shares its boundaries on the south with Tayabas, Pagbilao, and Atimonan; Sampaloc, Lucban and Cavinti, Laguna on the west side, and Real on the north.  The east side of the municipality opens to Lamon Bay, and further east to the Philippine Sea. Cabalete (Cagbalete) Island, which carries two Mauban barangays, is some six kilometers off from the Luzon mainland and northeast towards the Pacific Ocean.