Matahia is a village in Bagaha tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Matahia was 2,383 which includes 1,289 males and 1,094 females. Matahia covers 95.9 ha area. Pincode of Matahia is 845101.