Matiaria is a village in Lauriya tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Matiaria was 3,376 which includes 1,731 males and 1,645 females. Matiaria covers 334.4 ha area. Pincode of Matiaria is 845453.