The Logone's sources are located in the western Central African Republic, northern Cameroon, and southern Chad.

The flow of the river has been observed over 38 years (1951–84) in Bongor a town in Chad downstream of the union with the Pendé about 450 km (280 mi) above the mouth into the Chari.

Due to the strong evaporation, the amount of water flowing into the estuary decreases.

The average monthly flow of the river Logone at hydrological station of Bongor (in m3 / s ) (Calculated using the data for a period of 38 years, 1948–86) In the eastern lower Logone valley formed out of the Kotoko population several historic sultanates (Kousseri, Logone-Birni, Makari-Goulfey and others) which were vassals of the Bornu or Baguirmi inside the borders of modern-day Cameroon.

On the night of September 17 to September 18, 2013, heavy rains caused a rupture of the dam along the Logone River at the town of Dougui, Kai Kai District in the Far North Region of Cameroon.