Rahnapur is a village in North Lakhimpur tehsil in district of Lakhimpur, Assam, India. As per the data provided by Census of India in 2011, total population of Rahnapur was 2,456 which includes 1,247 males and 1,209 females. Rahnapur covers 142.18 ha area. Pincode of Rahnapur is 787031.