Lumapas is a mukim in the Brunei-Muara district of Brunei. It is located in the south of the Brunei-Muara district, bordering the water village mukims and Mukim Kianggeh to the north, Mukim Kota Batu and Pulau Berambang (Kota Batu) to the north and east, Limbang, Sarawak (Malaysia) to the east and south, Mukim Pengkalan Batu to the west and Mukim Kilanas to the west and north.
Mukim Lumapas includes these following areas:
Other locations within the mukim include:
Coordinates: 4°49′16″N 114°54′26″E / 4.82111°N 114.90722°E