Sanahpur Buzurg is a village in Singhwara tehsil in district of Darbhanga, Bihar, India. As per the data provided by Census of India in 2011, total population of Sanahpur Buzurg was 8,064 which includes 4,208 males and 3,856 females. Sanahpur Buzurg covers 507 ha area. Pincode of Sanahpur Buzurg is 847307.