Mirdaul is a village in Narpatganj tehsil in district of Araria, Bihar, India. As per the data provided by Census of India in 2011, total population of Mirdaul was 11,831 which includes 6,216 males and 5,615 females. Mirdaul covers 1260 ha area. Pincode of Mirdaul is 854335.