Sirikwa-inhabited territory is believed to have extended from Lake Turkana in the northern part of the Great Lakes region to Lake Eyasi in the south. Its cross-section stretched from the eastern escarpment of the Great Rift Valley to the foot of Mount Elgon. Some of the localities include Cherengany, Kapcherop, Sabwani, Sirende, Wehoya, Moi's Bridge, Hyrax Hill, Lanet, Deloraine (Rongai), Tambach, Moiben, Soy, Turbo, Ainabkoi, Timboroa, Kabyoyon, Namgoi and Chemangel (Sotik).