The community is located approximately 50 km east of Angurugu situated inside Little Lagoon, Point Langton on the northeast coast of Groote Eylandt. Umbakumba is approximately 50 km east of Angurugu on Groote Eylandt, which is 650 km east of Darwin and 50 km off the Arnhem Land coast in the Gulf of Carpentaria. Apart from the fortnightly freight barge service from Darwin, Umbakumba is generally accessed by air.