Barhauna is a village in Vidyapati Nagar tehsil in district of Samastipur, Bihar, India. As per the data provided by Census of India in 2011, total population of Barhauna was 12,131 which includes 6,334 males and 5,797 females. Barhauna covers 580 ha area. Pincode of Barhauna is 848502.