Jamunia is a village in Narkatiaganj tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Jamunia was 2,042 which includes 1,076 males and 966 females. Jamunia covers 189.3 ha area. Pincode of Jamunia is N/A.