Dhaarahwa is a village in Narkatiaganj tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Dhaarahwa was 1,622 which includes 823 males and 799 females. Dhaarahwa covers 283.21 ha area. Pincode of Dhaarahwa is 845451.