In the Banka district of Bihar, India, Katoria is a community development block and Nagar Panchayat. It is a portion of the eleven blocks that comprise the Banka district. Along with Amarpur, Banka, Belhar, and Dhoraiya assembly constituencies, it is a component of the Banka Lok Sabha constituency. The blocks that encircle Katoria Block are Sangrampur Block to the north, Banka Block to the east, Belhar Block to the north, and Chandan Block to the south. The marketplaces that are close to Katoria include Banka, Deoghar, Jhajha, and Amarpur. Katoria is made up of 16 Panchayats and 223 Villages. Katoria is the largest village, and Jamua is the smallest.