Barnihar 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 Barnihar was 2,085 which includes 1,086 males and 999 females. Barnihar covers 324.6 ha area. Pincode of Barnihar is N/A.