Kofyar yawan jama'a ne a yankin tsakiyar Najeriya wanda yawansu yakai dubu hamsin. Bayan nazarin ilimin ɗan adam da yawa, suna ba da kyawawan misalai na yadda hukumomin mulkin mallaka suka kasance cikin ruɗani cikin siyasar gida; na wadataccen kayan noma a yankuna masu cunkoson; na ci gaban kai-tsaye ci gaba na kasuwa-daidaitaccen noma; da kuma amfani da albarkatun gargajiya "na gargajiya" don ci gaba a cikin Nijeriya ta zamani. Yawan mutanen da aka sani Kofyar a zahiri sun haɗa da "ƙabilu" daban-daban kamar yadda jami'an mulkin mallaka na Burtaniya suka tsara: Doemak (ko Dimmuk), Merniang, da Kwalla. Koyaya ƙungiyoyin uku suna da yare ɗaya, tsarin tattalin arziki, da kuma asalin tatsuniyoyi, kuma sun zama ƙungiya mai suna Koffyer Federation a cikin 1940s; saboda haka ne masana halayyar ɗan adam suka kira su rukuni guda. Lokacin da hukumomin mulkin mallaka na Burtaniya na farko suka gamu da su, suna zaune ne a cikin tsaunuka masu tsaunuka a kusurwar kudu maso gabashin Jos Plateau da kuma ƙauyuka kusa da tsaunin tsauni.