Matiaria Nizamat is a village in Harsidhi tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Matiaria Nizamat was 4,271 which includes 2,217 males and 2,054 females. Matiaria Nizamat covers 433.9 ha area. Pincode of Matiaria Nizamat is 845437.