Najeriya, Jamhoriya ce mai jihohi 36 da babban birnin taraiya 1. Ko wacce jiha na da matsakaicin iko na gudanarwa da tafiyar da mulki karkashin ikon gwamnatin taraiya. Gwamnatin taraiyar na da mazauni ne a babban birnin taraiyar dake Abuja. Babban birnin taraiyar ba jiha bane, amma wani yankin gudanarwa ne wanda ke dauke da zababbun wakilai a majalisar taraiya tare da sa idon gwamnatin taraiya. Ko wacce jiha ta kasu ne bisa ga kananan hukumomi. A yanzu akwai kananan hukumomi 774 a Najeriya. Teburi mai nuna tarihin yadda aka samar da jahohi. Rarrabuwa da yadda aka kirkiri jahohin Najeria. Ƙananan hukumomin Nijeriya Kraxberger, Brennan (2005) "Strangers, Indigenes and Settlers: Contested Geographies of Citizenship in Nigeria" Space and Polity 9(1): pp. 9-27, pages 10, 11, & 15