Sirsia Mathia is a village in Bairia tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Sirsia Mathia was 5,266 which includes 2,713 males and 2,553 females. Sirsia Mathia covers 216.1 ha area. Pincode of Sirsia Mathia is 845438.