Math Lohiyar 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 Math Lohiyar was 15,961 which includes 8,301 males and 7,660 females. Math Lohiyar covers 1227.41 ha area. Pincode of Math Lohiyar is 845422.