Munja Patrahia is a village in Saraiya tehsil in district of Muzaffarpur, Bihar, India. As per the data provided by Census of India in 2011, total population of Munja Patrahia was 3,672 which includes 1,923 males and 1,749 females. Munja Patrahia covers 316.1 ha area. Pincode of Munja Patrahia is 843126.