Mamrej Nagar is a village in Rudauli tehsil in district of Faizabad, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Mamrej Nagar was 1,057 which includes 508 males and 549 females. Mamrej Nagar covers 139.14 ha area. Pincode of Mamrej Nagar is 225402.