Machhar Ganw is a village in Jogapatti tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Machhar Ganw was 6,640 which includes 3,481 males and 3,159 females. Machhar Ganw covers 208.1 ha area. Pincode of Machhar Ganw is 845452.