Jagarnathpur is a village in Hasanpur tehsil in district of Samastipur, Bihar, India. As per the data provided by Census of India in 2011, total population of Jagarnathpur was 2,665 which includes 1,417 males and 1,248 females. Jagarnathpur covers 49 ha area. Pincode of Jagarnathpur is 848206.