Itahar is a village in Kusheshwar Asthan Purbi tehsil in district of Darbhanga, Bihar, India. As per the data provided by Census of India in 2011, total population of Itahar was 5,654 which includes 2,963 males and 2,691 females. Itahar covers 623 ha area. Pincode of Itahar is 848207.