Imamganj is a city and a block headquarter in Gaya district of Bihar state, India. It is also a Bihar Legislative Assembly constituency in the Magadh division, part of the Aurangabad Lok Sabha constituency. It is located on the border of Jharkhand state, 65 km towards west from District headquarters Gaya, Bihar.
The Imamganj block is spread over 61708.52 sq acres and includes 7 village panchayat and 195 villages. In 2011 Indian census, it had a population of 1,864, including 951 males and 913 females.
Muslims constitute 13 per cent of the population in Imamganj. The population of the city is increasing day by day as the people from the rural area is settling in imamganj.Imamganj has a CRPF camp in the block campus.Two rivers surrounding imamganj flow namely Morhar And sorhar, they together meet at bhaghar and is called domuhan. However, in the Indian general election, 2014, the local voters defied the Maoists and voted heavily. Noted bestselling author Satyapal Chandra belongs to this place.