In Gambia the Aku account for about 2% of the population. Some estimates put the figure higher. Gambian Aku are descendants of Sierra Leone Liberated Africans, Settlers, transatlantic immigrants to the Gambia, and liberated Africans dropped off in the Gambia. Gambian Krios are an extension of the Freetown community of Creoles, and they have roots in the West Indies, North America, England, and the various African communities. Gambian Aku have also some European heritage through intermarriage and through their connections to Freetown Creoles.
Many speak Aku, an English-based creole language similar to the Krio language of Sierra Leone.
In Sierra Leone, the Aku Marabouts are known as Okus or Akus (Aku Muslims) or Marabouts, while in the Gambia, the term Aku refers to the entire Creole population. In the Gambia, "Aku Marabout" is the term used for the Oku people while Aku Creoles in and around Banjul are Christian.