Karnagar is a village in Salbani tehsil in district of Paschim Medinipur, West Bengal, India. As per the data provided by Census of India in 2011, total population of Karnagar was 2,812 which includes 1,392 males and 1,420 females. Karnagar covers 369.83 ha area. Pincode of Karnagar is 721129.