The Konongo of Tanzania, who number 138,000, live in western Tanzania. Little is known about the Konongo, except that they primarily practice African traditional religion. They are considered unreached with the gospel. The IMB still needs to research Konogo locations, culture and beliefs to determine the best ways to share the gospel with them.
Be still O [Konongo people] and know that Yahweh is God. He will be exalted among you. … The earth is the Lord’s with its fullness; the world and the [Konongo] who dwell therein. … Arise, God, judge the [Konongo], for you inherit all of the nations. (Psalm 46:10; 24:1; 82:8)