Gombe State (Leyddi Gommbe 𞤤𞤫𞤴𞤣𞤭 𞤺𞤮𞤥𞥆𞤦𞤫; Jihar Gombe) is a state in northeastern Nigeria, bordered to the north and northeast by the states of Borno and Yobe, to the south by Taraba State, to the southeast by Adamawa State, and to the west by Bauchi State. Gombe is the state capital of Gombe state and it was formed from a part of Bauchi State on 1 October 1996. Of the 36 states in Nigeria, Gombe is the 21st largest in area and the 32nd most populous, with an estimated population of about 3.25 million as of 2016. The state is nicknamed the "Jewel in the Savannah."
Geographically, the state is within the tropical West Sudanian savanna ecoregion. Important geographic features include the Gongola River — which flows through Gombe's north and east into Lake Dadin Kowa — and part of the Muri Mountains, a small range in the state's far south. Among the state's nature are a number of snake species including carpet viper, puff adder, and Egyptian cobra populations along with hippopotamus, Senegal parrot, and grey-headed kingfisher populations.
Ethnically, the State is inhabited by various ethnic groups, primarily the Fulani people living in the north and center of the state along with the Bolewa, Kanuri, and Hausa peoples, while the state's diverse eastern and southern regions are populated by the Cham, Dadiya, Jara, Kamo, Pero, Tangale, Tera, and Waja peoples. Religiously, between 65% and 70% of the state's population are Muslim while the Christian minority comprises between 30% and 35%.
In the pre-colonial period, the area that is now Gombe State was split up between various states until the early 1800s, the Fulani jihad seized much of the area and formed the Gombe Emirate under the Sokoto Caliphate. In the 1910s, British expeditions occupied the Emirate and the surrounding areas, incorporating them into the Northern Nigeria Protectorate which later merged into British Nigeria before becoming independent as Nigeria in 1960. Originally, modern-day Gombe State was a part of the post-independence Northern Region until 1967 when the region was split and the area became part of the North-Eastern State.