The district is part of
Bhagalpur division, has its headquarters in
Banka town. Banka district occupies an area of , comparatively equivalent to
Canada's
Akimiski Island. About 60% of the district consists of hilly regions (southern Banka). The northern part has alluvial plains. The Chanan is the main river of
Banka along with the Badua and Burigeria rivers. 70% of cultivable land is used for
paddy cultivation. Agriculture in southern Banka is rain–dependent.
Flora and fauna The district has some forested area under Banka, Bounsi Katoriya forest ranges. The wood of Banka range lies on the hill slopes, those in the other two ranges lie in the undulating land. Among the prominent variety of trees in forested areas are the
Sal which is usually found associated with Abuns, Asan, Kendu and Mahua.
Tasar worms are reared on Asan trees. Some other trees are Bahera, Kadam, Amaltas. Among the specials of the Acacia are Babul, Sirish, and Sain Babul. Among the fruit trees, those of Mango and Jackfruit are common.
Plantains,
date plants, Plums, and Blackberry are some of the other important fruit trees. Monkeys are common in the district, particularly the Hanuman, as well as Jackal, Deer, Lion, Bear, Leopards, and Elephants. Among the latter are
Barsingha and
Sambar. Wild geese, Duck, Leel, and Quail are some of the game birds inhabiting the district. Peacocks, Parrots, Hawks, and Doves are other birds found in Katoriya/Chandan forest. Sparrows, Crows and Vultures are also common. Several kinds of fish, such as Rohu, Katla, Boari, Tengra, Bachwa, Jhinga, and Pothi, are found. ==Demographics==