[1] Most of the inhabitants of the Bas-Uele District, with a population of 900,000 in 2007, are Boa people.

They live mainly through subsistence farming and hunting, with some river commerce.

Bas-Uele was bordered by French territory to the north, Haut-Uele to the east, Stanleyville and Aruwimi to the south, and Bangala and Ubangi to the west.

[4] With the 1933 reorganization Bas-Uele and Haut-Uele were again combined into Uele District, and lay in the new Stanleyville Province.

On 11 July 2015 it was split into the provinces of Bas-Uélé, Haut-Uélé, Ituri and Tshopo.