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Sumba

Sumba is an island in eastern Indonesia, is one of the Lesser Sunda Islands, and is in the province of East Nusa Tenggara. Sumba has an area of , and the population was 656,259 at the 2010 Census. To the northwest of Sumba is Sumbawa, to the northeast, across the Sumba Strait (Selat Sumba), is Flores, to the east, across the Savu Sea, is Timor, and to the south, across part of the Indian Ocean, is Australia.

Sumba (Democratic Republic of the Congo)

Sumba is the largest island in the Congo River. Its area is about . It belongs to the Democratic Republic of the Congo.