Jharmahui is a village in Bagaha tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Jharmahui was 2,843 which includes 1,478 males and 1,365 females. Jharmahui covers 152.3 ha area. Pincode of Jharmahui is 845106.