Baijnathpur is a village in Satar Kataiya tehsil in district of Saharsa, Bihar, India. As per the data provided by Census of India in 2011, total population of Baijnathpur was 2,641 which includes 1,384 males and 1,257 females. Baijnathpur covers 257.7 ha area. Pincode of Baijnathpur is 852201.