Karnehuan is a village in Mehnagar tehsil in district of Azamgarh, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Karnehuan was 2,789 which includes 1,363 males and 1,426 females. Karnehuan covers 386.02 ha area. Pincode of Karnehuan is N/A.