Inarwa is a village in Ramgarhwa tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Inarwa was 2,836 which includes 1,508 males and 1,328 females. Inarwa covers 143.2 ha area. Pincode of Inarwa is 845433.