It is located in the North-West of Idiofa Territory in the Kwilu District. The name Mateko designates: Mateko as a Sector (Collectivite), Mateko as a local municipality (Groupement) and Mateko as a town (Cite). It is about 45 km to Panu, one of the major harbours of Idiofa territory. Mateko is surrounded by beautiful small and big rivers such as Kamuntsha, Diambala river, Madzulu and Kimpele. Kamuntsha river is the nearest big river to Mateko, a tributary of the Kasai river and one of the important rivers of the region that facilitates trading between Mateko and Kinshasa. Kikongo (Kituba) is the main language of Mateko.