Baijnathpur is a village in Bihariganj tehsil in district of Madhepura, Bihar, India. As per the data provided by Census of India in 2011, total population of Baijnathpur was 6,604 which includes 3,422 males and 3,182 females. Baijnathpur covers 448 ha area. Pincode of Baijnathpur is N/A.