Iilwimi zebantu zithethwa ngamaqela Epygmies of the congo basin (Efe, Basu a, Bambuti, njl.), ngokuqhelekileyo yahlulwe njengabantu abahlukeneyo. Phakathi kwempuma kunye nombindi Webantu, ulwimi Lwesiswahili luye lwasasazeka kumashumi eminyaka akutshanje, oluye lwafumana impembelelo ebonakalayo yesiarabhu, inani labantu abathetha isiarabhu zizigidi ezingama-60 (Abantu Baseswahili bazizigidi ezili-1.9). I-adamaua-eastern subgroup ibandakanya I-Azande, i-cham-ba, I-Banda, kunye nabanye abahlala Kumbindi Nasempuma Sudan.
Iqela Lasekordofan, lincinci ngokwentelekiso nakwintsimi elihlala kuyo, liquka abantu Basekoalib, Tumum, Tegali, Talodi Nasekatla (Iriphabhlikhi Yasesudan),
Intsapho Yenilo-Saharan imelwe ngamaqela: I-Songhai, I-Saharan, I-Shari-Nile, kunye nabantu ababini abahlukeneyo beelwimi Kunye Noboya (Uboya). I-Songhai iquka i-songhai efanelekileyo, kunye Ne-Djerma kunye ne-dandy ehlala kumanxweme aseniger ephakathi; iqela Lesahara liquka I-Kanuri, I-Tuba( i-Tibbu) Kunye Ne-Zaghawa, ehlala ngaselake Chad Nasecentral Sahara. Elona group libalulekileyo Le-Shari-Nile kolu sapho libandakanya Abantu Basempuma Sudan (Dinka, Puer, Luo, Bari, Lotuko, Maasai, Nuba, okanye Nubians, njl.), ababefakwe ngaphambili kusapho oluzimeleyo Lwenilotic; I-Central Sudan people (I-Bagirmi, I-Morumadi), i-Berta Kunye ne-Kunama people. Abantu beli group bahlala emantla Ezaire nakumazantsi Esudan. Iilwimi Zemorumadi zithethwa zizizwe Zepygmy (Efe, Basua, njl.).